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While throughput maximization and service differentiation are two critical issues in wireless local area networks (WLANs), both are separately investigated in most existing work. This paper, from a different angle, addresses how to maximize saturation throughput of a WLAN conditioned that bandwidth differentiation is supported too. A novel model is established for this problem assuming IEEE 802.11e...
While most existing work focuses separately on how to improve WLAN saturation throughout and how to provide differentiated service, few attention is put to study their relationship. In this paper, we investigate the impact of service differentiation on saturation throughput maximization in IEEE 802.11e WLANs and theoretically prove that it is contradictory and impossible to achieve both of them simultaneously...
For analysis of the IEEE 802.11 distributed coordination function (DCF), one of the key assumptions commonly accepted is that every node always has at least one frame to transmit. In practice, however, this assumption may or may not be valid, particularly under unsaturated traffic conditions. In this paper, we assess the accuracy in using the traditional M/G/1 queueing model for the DCF as an alternative...
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