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Throughput Analysis and Measurements in IEEE 802.11 WLANs with TCP and UDP Traffic Flows

8 years 11 months ago
Throughput Analysis and Measurements in IEEE 802.11 WLANs with TCP and UDP Traffic Flows
There is a vast literature on the throughput analysis of the IEEE 802.11 media access control (MAC) protocol. However, very little has been done on investigating the interplay between the collision avoidance mechanisms of the 802.11 MAC protocol and the dynamics of upper layer transport protocols. In this paper, we tackle this issue from an analytical, simulative, and experimental perspective. Specifically, we develop Markov chain models to compute the distribution of the number of active stations in an 802.11 wireless local area network (WLAN) when long-lived Transmission Control Protocol (TCP) connections compete with finite-load User Datagram Protocol (UDP) flows. By embedding these distributions in the MAC protocol modeling, we derive approximate but accurate expressions of the TCP and UDP throughput. We validate the model accuracy through performance tests carried out in a real WLAN for a wide range of configurations. Our analytical model and the supporting experimental outcomes s...
Raffaele Bruno, Marco Conti, Enrico Gregori
Added 15 Dec 2010
Updated 15 Dec 2010
Type Journal
Year 2008
Where TMC
Authors Raffaele Bruno, Marco Conti, Enrico Gregori
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