On the Optimization of the IEEE 802.11 DCF: A Cross-Layer Perspective

Figure 7

Saturation throughput as a function of the minimum contention window size 𝑊₀, for three different values of 𝑃_𝑒 and three values of the number of contending stations 𝑁 as noticed in the legend. The other parameters are as follows: 𝑚=5 and 𝐸[PL]=1024 bytes. The optimal contention window size for each set of parameters is shown in the legend. Continuous curves represent the saturation throughput associated to the case 𝑃_𝑒=0, the dashed curves refer to the case 𝑃_𝑒=10⁻², and the dotted curves are related to the case 𝑃_𝑒=10⁻¹.