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In IEEE 802.11 WLANs, the fundamental MAC mechanism - DCF, only supports best-effort service, and is unaware of QoS. IEEE 802.11e EDCA supports service differentiation by differentiating contention parameters. This may introduce the problem of selfish traffics with rational nodes. Hence, game-theoretic EDCA (G-EDCA) is proposed in this paper to solve the problem. Moreover, a simple and run-time estimation...
In this paper, a novel MAC protocol, DCF with constant contention window (DCF/CCW), is proposed for IEEE 802.11 WLANs. Firstly a mathematical model is presented to analyse the throughput and access delay of DCF/CCW. The analysis shows that the performance of DCF/CCW differs much with different network scales. And a further analysis shows it is easily to obtain the optimal CCW for a given network scale...
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