Performance analysis of wireless LANs: an integrated packet/flow level approach [chapter]

R. Litjens, F. Roijers, J.L. van den Berg, R.J. Boucherie, M.J. Fleuren
2003 Teletraffic science and engineering  
In this paper we present an integrated packet/flow level modelling approach for analysing flow throughputs and transfer times in 802.11 s. The packet level model captures the statistical characteristics of the transmission of individual packets at the layer, while the flow level model takes into account the system dynamics due to the initiation and completion of data flow transfers. The latter model is a processor sharing type of queueing model reflecting the 802.11 design principle of
more » ... ing the transmission capacity fairly among the active flows. The resulting integrated packet/flow level model is analytically tractable and yields a simple approximation for the throughput and flow transfer time. Extensive simulations show that the approximation is very accurate for a wide range of parameter settings. In addition, the simulation study confirms the attractive property following from our approximation that the expected flow transfer delay is insensitive to the flow size distribution (apart from its mean).
doi:10.1016/s1388-3437(03)80242-1 fatcat:mbaocy65nnd3bpk5hoxtjekyli