New releases

• NetSim Cyber Suite (New Add-On)
  • Interface with power system simulators to simulate cyber attacks on cyber-physical power systems (CPPS).
  • Supported protocols: Synchrophasor, GOOSE, DNP3, and Modbus.
  • Attack modes: Automatic (Scripted) and Manual (Injection), with START / MODIFY / STOP controls and real-time status indicators.
  • Python-based attack scripting with user-selectable .pyd files.
  • Linux-based cyber client for cross-platform operation.
  • Available as a standalone add-on installer for NetSim Pro and NetSim Standard with an add-on license.
• Non-Terrestrial Networks (NTN)
  • Satellite Link Enhancements
    • Dual link model: Satellite Link (MCS-based) and Abstract Link (user-defined link speed, BER, and delay).
    • Forward and return link support for both link types with independent parameter configuration.
    • Satellite downlink scheduling (Round Robin) and uplink scheduling (Configured Grant).
  • Antenna Models
    • Three antenna models: ITU-R S.672-4, 3GPP TR 38.811 S.6.4.1, and Gaussian.
    • Configurable Max Antenna Gain and Theta (HPBW) parameters.
  • Uplink Link Budget
    • NTN link budget calculation for uplink. Radio measurement log and beam association log include uplink entries.
    • New UL CIR parameter and Rx Antenna Temperature parameter for channel modeling.
    • UE Noise Figure parameter added for UE and VSAT devices.
  • Coordinate System and Placement
    • Coordinate system changed from Cartesian to Geodetic.
    • Grid area specified in Longitude/Latitude.
    • Custom beam placement with user-editable beam count, auto and manual beam centers, and auto and manual HPBW.
    • Elevation mask support for NTN and Satellite networks.
  • Logging and Measurements
    • Satellite Beam Association Log for UT-to-beam association tracking.
    • New Direction column in Radio Measurement and Beam Association logs for uplink and downlink identification.
• 5G NR
  • MIMO: Type-1 Codebook support.
  • Antenna and Physical Layer: External antenna pattern support.
  • Active Queue Management: AQM parameters added to the Data Link layer for 5G.
  • New LTENR RLC Queue Detail Log.
• OLSRv2 - RFC 7181(New Routing Protocol)
  • OLSRv2 routing protocol with NHDP support for MANET networks.
  • Link quality calculation for DTDMA, TDMA, and IEEE 802.11 networks.
  • Configurable parameters: Hysteresis Reject/Accept, Initial Quality, Initial Pending, TC Hop Limit, Flooding Willingness, and Routing Willingness.
  • OLSRv2 Neighbour log added for TDMA and DTDMA networks.
  • Available as a licensed add-on for NetSim Pro.
• IEEE 802.11bd (New VANET Standard)
  • New PHY layer standard for VANETs operating at 5.9 GHz.
  • Supported bandwidths: 10 MHz and 20 MHz.
  • Frame aggregation support (1 to 32 frames).
  • Guard interval: 1600 ns.
  • 1x1 and 2x2 antenna configurations with omnidirectional antennas.
  • Power model support (same as IEEE 802.11ax).
• Full Buffer Traffic Model (New Application)
  • New unicast application type for saturated traffic modeling.
  • Configurable Packets in Flight parameter (0 to 10000, default 500).
• Satellite (DVBS2) Network
  • Frequency reuse support: FR1, FR2, FR3, FR4.
  • Geometric interference model.
  • Best beam selection implementation.
  • Reference Ellipsoid default changed from "Sphere" to "WGS84".

• Design Window Annotations
  • Add text and arrow annotations to the design window.
  • Annotations support drop, drag, resize, and rotate operations.
  • Annotation position and content are saved with the network and restored on open.
• Plot Module
  • "Set Y-Min to Zero" checkbox to force the vertical axis minimum to zero for comparative analysis.
  • Axis titles now include the selected units.
  • Default plot image save format changed from .bmp to .png.
  • Plot images saved automatically in logs folder as "Plots.png" when user saves a plot.
• Animation
  • Progress bar for large animation data, showing points read dynamically.
• Rapid Import
  • Optimized import for large DeviceList, ConnectionList, and Application configurations.
  • Batch import for device lists with large entry counts.
• Custom Properties Configuration
  • Channel model, MIMO, and Antenna model parameters configurable in a single merged window.
• NTN and Satellite Startup Window
  • Custom Excel upload with frequency reuse options (FR2, FR4) and band selection (KU).
  • Updated graphics and validation.

• NetSim Python Interface (New)
  • C APIs (NetSim_Python_Interface.lib and .h) and Python APIs (netsim_socket_client.pyd) for programmatic interfacing with NetSim.

• OLSRv2: OLSRv2 Multi-Cluster Scenario.

• Non-Terrestrial Networks (NTN) (New library)
  • Network Components
    • gNB located outside service beams, connected via feeder link.
    • Device support: handheld devices (FR1), VSAT terminals (FR1/FR2), 5G core, and remote servers.
  • Spot Beam Configuration
    • Single satellite with fixed-earth spot beams.
    • Configurable options: 1, 7, or 19 beams.
    • One-to-one mapping between beams and terrestrial cells.
    • Configurable inter-beam distances and frequency reuse (FR1/FR3).
  • Link Budget Calculations
    • Based on 3GPP TR 38.821 Section 6.1.3.1.
    • Models satellite antenna pattern with circular aperture reflector.
    • Supports CIR-based interference and user-configurable variations: altitude, environment, LOS probability, antenna parameters, EIRP, elevation, device movement, shadow fading.
  • Supported Bands
    • FR1: n254, n255, n256.
    • FR2: n510, n511, n512.
  • Link Specifications
    • Feeder Link: single beam with full bandwidth (gateway to satellite).
    • Service Link: multiple spot beams, bandwidth depends on frequency reuse.
  • Antenna Configuration
    • Circular aperture model with configurable radius (satellites/VSATs).
    • Omni-directional antennas (handheld UEs).
    • Antenna gains per 3GPP TR 38.811 Section 6.4.1.
  • Modulation and Coding
    • MCS mapping based on SINR and channel configuration.
  • Propagation Models
    • Free Space Path Loss (FSPL).
    • Atmospheric loss (user-defined, dB).
    • Clutter loss per 3GPP TR 38.811.
    • Log-normal shadowing (user configurable).
  • Interference Models
    • CIR-based interference.
    • Exact geometric interference.
  • Measurements & Analytics
    • Overall and per-beam/cell/application metrics: throughput, latency, errors.
    • Detailed radio measurements logged every TTI: SINR, SNR, Rx power, pathloss, interference, EIRP density, CQI, MCS, antenna gains, slant height, elevation angle, shadow/clutter loss.
• Military Radios
  • Jammers
    • Single-band jammer, modelled as an interference source.
    • Supports configurable on/off times and coverage range (Fixed / Pathloss-based).
    • Interference depends on transmit power and frequency overlap, reducing SINR and causing packet errors when active.
  • Physical Layer
    • New modulation techniques CPM and GMSK.
    • Three antenna models: Omnidirectional, Sector, and External Pattern, differing in how antenna gain varies with direction between the transmitter and receiver.
    • oIntroduced a PHY Rate and Slot Capacity Calculator in the GUI for user convenience.
  • MAC Layer Enhancements
    • Introduced Mixed Packet Fragmentation, enabling aggregation of multiple packets/fragments into a single slot when the slot capacity exceeds the packet/fragment size.
• 5G/6G
  • Merged 5G and Advanced 5G components into a single component named 5G/6G.
  • Cell Individual Offset (CIO) parameters to artificially modify target cell signal quality measurements during handover evaluation.
  • Rank (MIMO Layers) algorithm which computes the Rank that leads to the highest rate.
  • Configurable minimum and maximum resource shares in network slicing.
• MANET
  • AODV: GUI option to enable/disable the Hello Mechanism.
• Satellite (DVBS2) Network
  • Additional coding rates: QPSK (1/4, 2/5) and 32APSK (9/10).
• Wi-Fi
  • IEEE 802.11ax (Wi-Fi 6). Key features include:
  • Spatial Streams: Up to 8 streams
  • MIMO: Multi-User MIMO
  • Channel Bandwidths: 20, 40, 80, and 160 MHz
  • Modulation Schemes: BPSK, QPSK, 16-QAM, 64-QAM, 256-QAM, and 1024-QAM.

• NetSim Analytics
  • Multi-experiment analytics, enabling comparison, analysis, and visualization of results across experiments.
  • Data visualization options: bar, scatter, line, and pie charts.
• NetSim Animation
  • Visualize and analyse the packet flow in detail, along with animation controls and speed control options.
• NetSim Plots and metrics
  • Option to change units of rate, time, and power in Metrics and Plots windows.

• Support for VS Code, including. vscode configuration for code editing, building, and debugging

• 5G Network
  • Load balancing in 5G using Cell Individual Offset (CIO) (5G Load Balancing using CIO)
  • Effect of distance on pathloss, SINR and MCS (7-Cell Hexagonal Layout, Urban Macro Propagation, NLOS).
• Military Radios
  • TDMA Latency and Queuing Lengths for Random and Fixed Traffic Patterns.
• Non-Terrestrial Network (NTN)
  • Impact of LEO Altitude Variation on SNR and Path Loss.
  • SNR Variation Across Outdoor Scenarios with Varying Transmit Power.
  • SNR and Pathloss variation with varying elevation angles.
  • 3GPP 38.821 Set 1 system level simulation (5G/6G NTN Reference scenario)

• AI/ML for communication networks
  • Added four new use cases, as explained in Machine Learning with NetSim
    • Two new use cases under AI/ML in 5G RAN
    • One use case each under AI/ML for Attack Detection in IoT and VANETs
• RF Heatmaps
  • Added a new RF heatmap type for frequency allocation, supporting up to 15 frequencies in Internetworks and 5G networks
• 5G NR
  • Added Proportional Fair Scheduling with Rate Guarantee MAC layer algorithm
  • Support for Guaranteed Bit Rates (GBR) for UEs
  • Logging for LTENR PRB utilization and PRB utilization vs. time plot
• MANET - OLSR (Enhancement)
  • Logging for OLSR neighbours and MPR logs
• Dynamic TDMA
  • Added customised SINR-BER table file based error model option
• GUI updates
  • Redesign of "Your Work" icons and menu for better usability
  • Home Page and Simulation page can now be opened simultaneously
    • Pin NetSim home page option
• New Examples
  • MANETs
    • Comparative analysis of AODV and OLSR
  • Internetworks
    • Designing a Nationwide Network Using NetSim | Swiss Universities Case Study
  • 5G
    • QoS in 5G with Guaranteed bit rate (GBR)
    • 5G data rate and throughput computation
  • Dynamic TDMA
    • Optimized slot allocation for load balancing in dynamic TDMA based MANETs

• RF Heatmaps
  • Supports Wi-Fi, 4G, 5G, MANETs, TDMA Radio Networks
  • Displays Rx Signal Level, SINR for both Downlink (DL) and Uplink (UL)
  • Option to visualize using Best Transmitter or Single Transmitter
• 5G Enhancements
  • Network slicing with dynamic resource allocation using online machine learning algorithms
  • New Downlink Interference Model: Added Interference over Thermal (IoT)
• Underwater Acoustic Networks
  • Integrated Energy Model
• VANETs
  • Added support for elevation in SUMO by updating vehicle Z-axis during runtime
• Wi-Fi
  • MCS selection: Now includes fixed MCS and Auto-rate-fallback options
• Logs
  • DTDMA slot allocation log file added
  • MANET OLSR MPR log file added
• GUI Updates
  • Mobility viewer: Visualizes device movement across the environment
  • New distance measurement tool for measuring distances between devices
  • Icon set customization: Select different icon sets from the available options
• New Examples
  • MANETs
    • OLSR: MPR Formation, NDP and TC Messages
  • Internet of Things
    • IoT DDoS attack
  • Wireless Sensor Networks (WSN)
    • Analysing throughput, latency and energy consumption as we scale the number of sensors
  • Underwater Acoustic Networks
    • Throughput and delay variation with distance
    • Underwater propagation losses and device range
    • s-Aloha performance with multiple transmit nodes
    • Energy consumption analysis in underwater acoustic networks under varying traffic loads
  • 5G
    • Network Slicing for ensuring throughput guarantee
• New Experiments (for Edu users)
  • LTE Scheduling
  • 5G Beamforming
  • 5G: Throughput and fairness comparison of scheduling algorithms in a multi-gNB multi-UE scenario

New Plots Module

• Network performance over time
  • Application Throughput, Application Latency, Application Jitter
  • Link Throughput
• Radio Measurements over Time
  • Pathloss, Shadowing, Fading, Beamforming, Interference
  • SNR, SINR
  • MCS, CQI
• Additional time series plots
  • TCP Window
  • Buffer Fill
  • Application (traffic) generation rate. Helps users gauge throughput efficiency
  • Energy consumption, including individual plots for Transmit, Receive, Idle, Sleep, Harvest energies.
• Multi-plot Stacking Feature
  • Facilitates quick analysis by stacking various plots in a single chart
• Chart Appearance: Toggle grid lines visibility, Fonts
• Series appearance: Line Color, Line Type, Marker display, Values display
• Add Annotations
  • Rectangles, Ovals, Arrows, Lines, Text
  • Helps improve visualization and commentary

New Results Window

• Streamlined interface emphasizing plots, application metrics, and link metrics
• Consolidated other metrics into an additional metrics window
• Relocated logs, traces and packet captures to a lower section to reduce clutter

5G NR now supports Network Slicing

• Slice Types: BE, eMBB, URLLC, MIoT, V2X
• Static slicing based on % of resources to be allocated
• UI option to map UEs to slices

Addition of Sector Antenna in MANETs

• Parabolic antenna model
• User can configure Boresight angle, Element gain, Front to back ratio, Beamwidth

Wi-Fi improvements

• Addition of packet error probability (PEP) based on SINR-MCS tables
• User can now set PEP per tables or per formula

New experiments in Academic version

• Understanding Radio propagation: Pathloss, Shadowing and Fading
• Connectivity of a randomly deployed 1-D ad hoc network
• Impact of interference in a LTE 4G network

Redesigned GUI for faster experimentation, smarter usage, reduced clutter and so much more.

• Simplified navigation: Four main tabs – Create Scenario, Set Traffic, Configure Reports, and Show/Hide Info
• Clean design: Slide-out properties panel for Grid, Devices, Links, Applications, and Logs, without losing sight of the network scenario.
• Better discoverability: Parameter search in the device configuration panel.
• Rapid configurator: Create large scenarios quickly
• Better organization: Export/import device properties to/from MS Excel.
• Customizable workspace ("Grid"): Personalize with adjustable axis colors and styles.
• Clear feedback: GUI notifications have a dedicated panel for errors and warnings.
• Smart features: Undo-Redo capability, Auto-connect for devices, and an Auto-save feature to protect your work from unexpected crashes.

Tech Enhancements

• 5G: Sector antenna based on 3GPP TR 37.840
• UWAN: Capability to set up multiple temperature zones, each with various parameters influencing the speed of sound.
• VANETs: Capability to import SUMO files with negative X, and Y coordinates.
• Enhanced MATLAB interfacing: Call via new APIs for exchanging arrays and lists
• Logs: Position and mobility log (.csv) to record position and motion of devices over time. Energy log (.csv) to record energy consumption and harvesting over time

Academic Version: New Experiment - Data traffic types and network performance measures

• 5G/4G HARQ with soft combining
• 5G/4G Block error (BLER)
  • Users can set a target BLER
  • BLER will be looked up from SINR-BLER data tables.
  • NetSim has exhaustive SINR-BLER data for various transport block sizes for all MCSs (1, 2, ..., 28) for Base graphs (1, 2) for all three tables (1, 2, 3). In total 28*3*2 = 168 files.
  • SINR-BLER data generated using an in-house proprietary link-level simulation program. The results have been carefully validated against published literature.
• 5G/4G Outer loop link adaptation (OLLA)
  • Once the t-BLER is set an initial MCS is "guessed". Subsequently, the MCS is dynamically adjusted based on an outer-loop link adaptation algorithm that uses HARQ ACK-NACK messages
• 5G/4G Uplink interference
  • Modeled as rise over thermal. The value of the interference is user-defined.
• 5G/4G new parameters
  • Handover: New UI variables (i) Handover interruption time, (ii) Handover margin, and (iii) Time to Trigger
  • PF scheduler: User configurable EWMA moving average parameter.
  • User configurable overhead (%) per slot in DL and UL to account for control signals. This was previously predefined in code.
• 5G/4G propagation model additions
  • Log distance mean pathloss.
  • Lognormal shadowing
• 5G Code block segmentation
  • Transport block is split into code blocks (CBs). Then CBs are grouped in to code block groups (CBGs) and transmitted over the air interface.
• 5G band addition
  • 60 GHz n263 band.
• Radio measurements
  • Available with all wireless networks including 5G, LTE, WiFi, MANETs, VANETs, IoT, WSN and more.
  • The measurements csv file will log timestamp, device IDs, distance, tx-power, rx-power, pathloss, shadow loss, fading loss, interference power, and more
  • Users can enable logs from the UI.
• File based mobility
  • Users can provide this in a simpler csv-based format. Allows for easy manipulation using MS Excel.
• File Based device Placement in MANETS, WSN and IoT
  • Users can provide this in a simpler csv-based format.
• Applications
  • Gaming traffic model added.

• 5G Enhancements
  • Downlink Interference. Approximate Wyner model and exact Geometric model per 3GPP pathloss equations
  • HARQ with retransmissions and soft combining
  • Code block segmentation
  • PDSCH, PUSCH, and SSB Channels are now modeled. PDSCH/PUSCH for data and SSB for control (initial association and handover)
  • Analog beamforming in the SSB
  • Radio measurements - Pathloss, SINR, MCS, CQI, etc - are logged by all UEs at each slot, and Radio Resource Allocation - PRB allocation, scheduling metric - are logged per UE per carrier per slot
  • Handover interruption time has been added to model H/O latencies
• Underwater acoustic networks (UWAN). New library
  • L1 – PHY Layer
    • Underwater Acoustic PHY Model. Propagation delay based on the speed of sound which is dependent on (user configurable) water temperature, depth and salinity
    • Modulation schemes: BPSK, QPSK, FSK, 16-QAM, 32-QAM, 64-QAM
    • User-configurable Data rate and Bandwidth
    • SNR based packet reception. BER computed from SNR-BER curves after accounting for propagation losses
    • Thorp Propagation Model with user-configurable parameters for Temperature, Depth, and Salinity, Surface Wind speed, Turbulence, and Shipping Noise
  • L2 – MAC layer
    • Slotted aloha protocol
    • TDMA/DTDMA is planned for subsequent releases
  • L3 – Network layer
    • No routing configuration (user inputs) is required for single-hop transmissions
    • Static routing to be configured for multi-hop transmissions
    • Ad hoc (MANET) routing is currently unavailable and is planned for subsequent releases
    • Devices can only communicate within the UWAN. External connectivity (via a gateway) is planned for future releases.
• 802.11 WLAN improvements
  • PHY now accounts for the “capture effect” with decoding per SINR-PER curves.
  • Exact interference model based on received SINR accounting for all simultaneously transmitting sources. Prior to v13.2, the Interference model was approximate; it used an Interference threshold that was equal to the control rate Min RSSI with PER being computed per SNR (and not SINR)
  • BER calculation now has forward error correction (FEC) incorporated. SINR BER curves are provided in the manuals.
  • Carrier sense threshold is now set to Control rate receive sensitivity
  • PHY rate is now got by comparing RSS against MCS tables. Prior to v13.2, it was based on target packet error probability.
• Propagation model
  • Range based pathloss model has been added
• Results and output files
  • All .csv logs are auto-formatted as a table in excel with the option to create pivot tables and pivot charts
  • Application metrics: Source data for throughputs plots can now be opened in excel
• Performance
  • 5G simulation speed up

• User interface improvements
  • Your work has been completely redesigned.
  • Multiple folder levels are now available for organizing your saved projects.
  • Import of experiment files and workspaces redesigned for better collaboration between multiple users.
  • Home screen: Sharper fonts. New display of licensed and unlicensed components.
  • Experiments and Template examples: search bar is now available. Short description and scenario image added for easy understanding.
  • Single click switch between workspaces
  • One-click compare code between workspaces
• Install
  • Optional installation of third party tools in custom mode for a smaller install footprint
  • Third-party tools are now downloaded online and therefore a significantly reduced set-up size
• WiFi 802.11 improvements
  • 802.11 ac now supports aggregation up to 1024 packets
  • Microsecond to nanosecond round off for 802.11n and 802.11ac transmission time calculations
  • Bugs resolved:
    • Packets from multiple applications transmitted to different nodes were not aggregated on a per-node basis
    • Incorrect power calculations in virtual interfaces in EDCA
• 5G improvements
  • UE out of coverage
  • Beamforming array gain
• Video model enhancements
  • New video codes: H.261, H.263, MPEG1 and MPEG2
  • Buffered video (BV1 through BV6) per IEEE 802.11-14/0571r12 standard
• New voice models: CELP and MELP
• Propagation models can now be customized by the user
• TCP improvements: NetSim now runs a single TCP RTO Timer for the entire TCP connection. In prior releases, each segment has its own RTO timer.
• Note:
  • From v13.1 onwards NetSim will no longer work on x86 (32 bit) processors; only x64 (64 bit) processors are supported.
  • v13.0 exported workspaces (*.netsim_wsp) cannot be imported into v13.1. Users should zip the v13.0 workspace folder and then use the “folder” import option in v13.1.
  • Map background is available as an “experimental” feature

5G core functionality, major UI design update, and a variety of product enhancements. Release highlights:

• 5G Core (Based on TS23.501, TS23.502) functions and interfaces:
  • Access Mobility Function (AMF) that coordinates the 5G Standalone registration procedure, SMF and UPF
  • Session Management Function (SMF) that serves as a control plane entity and is responsible for the session management
  • User Plane function (UPF) that is a data plane component that handles user data
  • Interfaces: N1/N2, N3, N4, N6, N11, XN
• 5G NSA deployment architecture (in addition to existing SA mode) for LTE - 5G dual connectivity, to leverage existing LTE RAN/EPC deployments.
  • Option 3 where only LTE core/ EPC is present and no 5G Core devices are present. Here, eNB is the Master Cell and gNB is the Secondary Cell.
    • Option 3: Only eNB connects to EPC and eNB and gNB connects to the XN interface.
    • Option 3a: Both eNB and gNB connects to the EPC. No XN interface.
    • Option 3x: Both eNB and gNB connects to the EPC. eNB and gNB connects to the XN interface.
  • Option 4 where only 5G Core devices are present, and EPC is not available. Here, gNB is the Master Cell and eNB is the Secondary Cell.
    • Option 4: Only gNB connects to all the 5G Core interfaces. eNB connects to the XN interface.
    • Option 4a: gNB connects to all 5G Core interfaces and eNB connects to AMF and UPF through respective interfaces.
  • Option 7 where only 5G Core devices are present, and EPC is not available. Here, eNB is the Master Cell and gNB is the Secondary Cell.
    • Option 7: eNB connects to all 5G Core interfaces. gNB connects only to the XN interface.
    • Option 7a: gNB connects to all the 5G Core interfaces. eNB connects to AMF and UPF through the respective interfaces.
    • Option 7x: gNB and eNB connects to all the 5G Core interfaces.
• 5G RAN
  • FDD bands added to existing TDD bands
  • MIMO operation with layer count equal to Min (Tx-antenna-count, Rx-Antenna-count). Note that NetSim v12.2 used the abstraction “layer count” directly as a user input
    • gNB antenna count supported 1, 2, 4, 8, 16, 32, 64, 128
    • UE antenna count supported 1, 2, 4, 8, 16
  • MIMO Spatial channel model
    • MIMO Spatial Channel Model (SCM), i.e., the channel is represented by a matrix H, whose entry (t, r) models the channel between the t-th and the r-th antenna elements at the transmitter and the receiver, respectively
    • Gaussian channel with Rayleigh fast fading: i.i.d Complex Normal (0, 1) channel (H-matrix) that changes independently every coherence time.
    • Beamforming gain per the eigen values of the covariance (Wishart) matrix
  • Ability to input per gNB pathloss files from 3rd party software tools like MATLAB
    • Pathloss along cartesian X, Y coordinates in a mesh grid around the gNB
    • Best server (gNB) per UE calculation automatically handled by NetSim
• Military Radios (TDMA Radio Networks)
  • Forward error correction (FEC)
  • L-band and S-Band Radios
• Device models
  • Processing delay to simulate compute related latencies
• Applications
  • Faster FTP fragmentation for simulation acceleration
• Satellite
  • Updates to Markov Loo fading model in Satellite networks
• Graphics: Simple and smooth working
  • Reimagined home screen design
  • Workspace enhancements: Size field for experiments and workspaces, and File selection option for import/export
• Documentation
  • Figure and table numbers for all manuals with cross referencing
  • New examples and experiments (for Edu users)
• Utilities
  • Config file generator: Automated scenario generator for generating large scale networks with 1000s of nodes.
  • Batch simulations: Automated execution of 100s of config files sequentially. Ideal for running simulations over night
  • Multi-parameter sweeper: Automated sweep of multiple parameters across its range of values and logging of results in csv for analysis

• Cloud Licensing: Run NetSim from your home via our cloud servers
• Graphics
  • Time series plot of instantaneous, moving average and time average throughputs
  • Ability to set window size for moving average
  • Time series plot of buffer occupancy
  • Time series plot of TCP congestion window
  • Formatting options - color selector, zoom and pan
  • Scales upto 5 million points
• 5G NR
  • Handover
  • PDCP Enhancements
  • RRC Enhancements
  • RLC Enhancements
• WiFi - 802.11 EDCA updated per latest standard
• VANET Networks can be interfaced to Internetworks via Road-side-units. Vehicles can communicate with backbone network/cloud.
• Satellite Communication library can now be interfaced with Internetworks library
• New experiments and examples
  • Experiment addition: IoT Star topology
  • Experiment addition: Understanding Network Performance Measures- Throughput and Delay
  • Example additions for VANETs: Manhattan mobility model, vehicles moving in a closed loop

New Features

• Introducing the new Satellite Communication Networks Library
  • Packet level communication between terrestrial nodes and Geostationary satellites
  • The Satellite MAC layer protocol supported in NetSim is TDMA for forward link and MF-TDMA for return link (based on the DVB S2 standards)
  • The forward link is in the Ku band (12 – 18 GHz) while the return link is in the Ka band (24 – 60 GHz)
  • Channel model: Friis free space path loss with Loo Markov fading model
  • Modulation: QPSK, 8PSK, 18APSK, 16QAM, 32APSK with appropriate coding rates
• 5G NR mmWave library additions
  • Carrier Aggregation
• Propagation Models
  • Added: Ricean Fading, Two ray pathloss model and pathloss matrix model
• Queuing and Scheduling now features the following algorithms
  • Scheduling - FIFO, Round Robin, Priority, EDF, Class Based
  • Queuing - Drop Tail, RED, WRED
• WLAN Rate adaptation now features three algorithms
  • Packet error based, Consecutive success or failure and Minstrel
• Express installation of all third party tools

New Features

NetSim v12 - A pro tool that's a cut above the rest!

• Introducing the Brand New 5g NR mmWave Library
  • End-to-end simulation of 5G NR-mmWave Networks
  • Full stack, packet level simulation covering all the layers of the stack and applications running on top
  • mm Wave propagation
  • Based on the latest 3GPP38 series
  • 'Building' is available in UI for modeling Indoor propagation
  • Check out more detailed information (5G NR mmwave library)
• Refined workflows to speed up time consuming tasks
  • VANETs
    • Interface seamlessly with SUMO -
    • Road side units (RSUs) can now be simply dragged and dropped
  • File based placement of devices for LTE and WSN
  • Battery model now available in MANET GUI
• Precision modeling for advanced users
  • BER models updated for 802.15.4 and 802.11
  • Jitter is now automatically calculated and displayed in Results Window
  • Simulation time resolution increased from seconds to milliseconds
  • Throughput now calculated from application start to application end time
• Seamless interfacing with external tools (SUMO, Wireshark, MATLAB, Python)
• Learn from a wide range of examples and experiments. New additions:
  • Three sets of examples in Internetworks: Effect-of-Bandwidth-and-Guard-Interval-in-WiFi-802.11ac, 802.11-Rate-Adaptation, TCP-Bandwidth-Delay-Product
  • Six sets of examples for 5G NR mmWave: 4G-vs-5G, MAC-Scheduling, Indoor-vs-Outdoor, Distance-vs-Throughput, 5G-log-file-and-packet trace
  • Four sets of experiments in Academic version

New Features

The Apr 2019 release of NetSim (ver 11.1) rolls out exciting new features focused on enhancing usability:

• Introducing Workspaces in NetSim - More freedom and flexibility
  • Users can group together NetSim source code, binaries, libraries, experiments and images related to one project
  • Export/import workspaces and export/import experiments
  • A single PC/VM and license can be used effectively by multiple users each of whom can independently modify the underlying source code
• Building and linking your own code is now a breeze
  • Single click to open protocol source codes
  • Manual, complex and time-consuming tasks related to the development environment, dependencies and compiler eliminated
  • Write your own code and simply build - NetSim will automatically simulate per your code
• Accelerate R & D by extending existing projects
  • NetSim file exchange
  • R & D projects with detailed documentation
  • Source C code available in GitHub repositories
• Understand NetSim internals through example simulations
  • 40+ examples
  • Ready to simulate scenarios to understand the working of different protocol/technology libraries in NetSim
• Learn networking concepts through sample experiments (for Edu customers)
  • 35+ experiments covering a wide range of networking technologies
  • Each experiment comes with objective, theory, set-up, results, and inference
  • Complete experiment manual is available
• Benefit from well-structured documentation
  • User manual plus 13 technology library manuals
  • Sectioned as Simulation GUI, Model Features, Featured Examples and Reference Documents
  • 250 + Q & A available in our knowledgebase

New Features

• Software Defined Networks
  • Openflow v1.3 Compatible
  • SDN based IoTs
  • SDN based WSN
  • SDN based LTE
  • SDN based VANETs
• OPSF Updation
  • OSPF Messages, Router LSAs, OPSF Logs file per RFC 2328
• Link failure
  • Links can be failed and recovered
• Switching 10G, 40G and 100G
  • Switch ports and links now support 10G, 40G and 100G
• Real-Time interaction with Simulation
  • NetSim Console with Window equivalent commands
• Addition of GMSK modulation scheme at PHY layer
• Battery models for MANET and VANET nodes
• Statistics Utility for automatic formatting of packet trace and generation of pivot tables

GUI Enhancements

• Fast configuration option for simulating networks with a large number of devices
  • Uniform, Random and file based placements
• Display options in Simulation screen
  • Device IP, Link Speeds
• Radio signal coverage visualization heatmap (SNR based)
• Copy/paste option for devices & links in GUI
• Updated tool tip help and error messages
• Re-designed ribbon and device icons
  • Context sensitive ribbon with visibility only for relevant devices for the network
• Print option for reporting

New Features

• All New Animator
  • 25+ info fields now available with packet animator
  • Wide range of animation options including plots, battery level, graphs, tables and more
  • Visualization with inbuilt graphs for link and application throughput
  • Graph controls with Coloring, XY Axis settings, Grid Settings, Zoom and more
  • Users can add their parameters to NetSim animations
  • Users can plot their own NetSim graphs - 2D, 3D, tables etc
• COAP Application Layer Protocol
  • COAP Application Header
  • Request Response Model
  • Usage of Message Types
  • Simple stop-and-wait re transmission reliability with exponential back-off for confirmable messages.
  • Duplicate detection for both confirmable and Non-confirmable messages.
  • Transmission Parameters - Acknowledgement Required, Acknowledgement time, Acknowledgement Random factor, Maximum Re-transmit
  • Piggybacking - Piggybacking Time
• Multiple MANETs
  • Simulate mulitple MANETs interconnected using bridge node
  • Connect MANETs to core networks using bridge nodes
  • P2P wireless links between bridge nodes
  • TDMA waveform slot planner for Tactical Operations

Product Enhancements

• Improved file based mobility for users to input custom mobility models
• Emulator speed increased by 4x to handle higher data rates upto 250 Mbps through one processor
• Ability to set priority in applications for QoS - UGS, RTPS, nRTPS and BE

New Technologies

• Virtual LAN (VLAN) Protocol per IEEE 802.1Q
  • VLAN Tagging, VLAN ID and VLAN Name
  • Access and Trunk Ports
  • Inter VLAN routing
  • VLAN Configuration through GUI or Text file
• Internet Group Management Protocol (IGMP) per RFC 2236
  • IGMP Message - Query, Report
  • Host State Machine and Router State Machine
• IP Multicasting
  • Host extensions for IP multicasting per RFC 1112
  • IP route tables based on multicast application in host
  • IP route tables changed as per matched bit count
• Protocol Independent Multicast (PIM), Sparse mode per RFC 7761
  • Shortest Path Tree
  • (*, G) State
  • (S, G) State
  • Designated Router Election
  • Hello Timer, Join Expiry Timer
• Network Address Translation (NAT) and Public IP
  • Public IP of Host from WAN Router
• Detailed L3 Switch Model
  • Switching Techniques
  • Spanning tree protocol and multiple spanning tree instances per switch
  • Unicast, Broadcast and Multicast switching
  • Promiscuous mode

Network Emulator Enhancements

• NetSim emulator can now interface with Raspberry PI devices
• Multicast Emulation Support
• Broadcast Emulation Support

Product Improvements

• Redesigned home screen and results screen
• Access Control Lists in Switches - Inbound, Outbound, Deny, Permit
• Updated Carrier Aggregation per Rel 14 in LTE-Advanced
• Multicast Application Modeling
• Configuration of static IP table through the GUI
• Packet trace additionally logs IP address of Source, Destination, Next Hop and Gateway
• Export of results to XL/.CSV
• Silent install capability
• Support for Visual Studio 2015 and 2017

• The Road to 5G - Simulation of LTE covering
  • LTE Advanced
  • LTE Device to Device (D2D)
  • LTE Femto Cell
• Intelligent Transportation Systems — Simulation of Vehicular Adhoc Networks (VANETs) covering
  • IEEE 1609 WAVE
  • Basic Safety Message (BSM) Protocol as per standard J2735 Dedicated Short Range Communications (DSRC) Message Set Dictionary
  • Interface with SUMO for Road Traffic Simulation using TraCI API's
• Accelerate IoT Research - Features RPL protocol for IoT
  • Routing Protocol for low power and lossy links (RPL) per RFC 6650
• Updated RF Propagation Models
  • Path Loss
    • Friis Free Space Propagation
    • Log Distance
    • HATA Suburban, HATA Urban
    • COST 231 HATA Suburban, COST 231 HATA Urban
    • Indoor Office, Indoor Factory, Indoor Home
  • Shadowing Models: Constant, Lognormal
  • Fading Models: Rayleigh, Nakagami
• TCP enhancements - Optimized congestion control algorithms for high bandwidth networks
  • BIC
  • CUBIC (used in the latest linux kernel)
• Integrated Analytics and Visualization
  • In-built plots for link & applications throughputs
  • Graph formatting - layout, colors, axes, zoom etc
  • Pivot table operations on packet trace