WiFi 802.11 White papers
Carrier Sensing and Interference
- Effect of carrier sensing and interference on WiFi performance
- A 2AP-2STA example scenario with 7 cases
- Results for Basic access and RTS/CTS
- MCS selection per RSS and decoding per SINR
- Radio propagation calculations
Performance anomaly in 802.11 Networks
- Explore how signal strength affects MCS (Modulation and Coding Scheme) selection in 802.11n.
- Analyze the relationship between application layer throughput and nominal PHY rates.
- Investigate how the distance to the AP affects data rates: STAs near the AP have higher rates, and distant STAs have lower rates.
- Examine the effect of slower STAs on the throughput of faster STAs and on the overall network performance.
NetSim results vs. Bianchi model predictions
- Understand the “Bianchi” formula, which comes from a stochastic analysis of the IEEE 802.11 protocol
- Explore the fixed point technique for numerically calculating collision probabilities
- Compare NetSim simulation results for 802.11b and 802.11g against the Bianchi predictions
- Consider possible enhancements to the Bianchi model, to model real-world Wi-Fi networks more accurately.
Advanced Capacity Analysis of Wi-Fi 802.11b, 802.11n, and 802.11ac
- Performance evaluation of the Wi-Fi 802.11b, 802.11n and 802.11ac standards, with different settings and channel conditions.
- Throughput measurements for single AP-STA configurations with different distances, antenna counts and packet aggregation settings.
- The effect of MIMO and packet aggregation on the maximum UDP and TCP throughput of 802.11n and 802.11ac.
- MAC throughput efficiency in Legacy and HT modes