Abstract
This study proposed a High performance Distributed Coordination Function with QoS support (QHDCF) protocol to enhance the throughput and achieve fair allocation of wireless medium access. QHDCF protocol has two working modes: contending mode and active mode. In the contending mode, all stations follow DCF scheme to contend for channel access. Once a station successfully accesses the channel, it switches to the active mode. In the active mode, the transmitting station determines the next transmitter according to a selection scheme from a probability formulation perspective. The selection scheme is based on relative weights of different traffic classes so that weighted-fairness can be achieved. Besides, since most stations do not contend for channel access, collisions are reduced a lot and therefore the throughput is enhanced. Simulation results show that QHDCF performs significantly better than EDCA in terms of both weighted fairness and throughput.
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Chen, YS., Tseng, FC., Ke, CH. (2013). Achieving Weighted Fairness for High Performance Distributed Coordination Function with QoS Support in WLANs. In: Chang, RS., Jain, L., Peng, SL. (eds) Advances in Intelligent Systems and Applications - Volume 1. Smart Innovation, Systems and Technologies, vol 20. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-35452-6_63
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DOI: https://doi.org/10.1007/978-3-642-35452-6_63
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-35451-9
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