Abstract
IEEE 802.11 based wireless mesh networks can exhibit severe fairness problem by distributing throughput among different flows originated from different nodes. Congestion control, Throughput, Fairness are the important factors to be considered in any wireless network. Flows originating from nodes that directly communicate with the gateway get higher throughput. On the other hand, flows originating from two or more hops away get very little throughput. For this reason a distributed fair scheduling is an ideal candidate for fair utilization of gateway’s resources (i.e., bandwidth, airtime) and thereby achieving fairness among contending flows in WMNs. There are numerous solution for aforementioned factors in wireless mesh network. We figured out some problems of few existing solutions and integrated to give the solution for those problems. We considered neighborhood phenomenon, airtime allocation and elastic rate control to design a novel technique to achieve fair rate control in wireless mesh network. And finally we introduce distributed fair scheduling to get fairness in mesh network.
Highlights
Wireless Mesh Networks [1] (WMNs) are envisioned to replace the wired backbone by multi hop wireless network
Efficient rate control is required for fair bandwidth sharing and optimum network throughput
As various wireless networks evolve into the generation to provide better services, a key technology, wireless mesh networks (WMNs), has emerged recently
Summary
Wireless Mesh Networks [1] (WMNs) are envisioned to replace the wired backbone by multi hop wireless network. A WMN is dynamically self- organized and self-configured, with the nodes in the network automatically establishing and maintaining mesh connectivity among. This feature brings many advantages to WMNs such as low up-front cost, easy network maintenance, robustness, and reliable service coverage. In multi-hop WMN nodes that are directly connected to the gateway get higher priority for their aggregate flow than the nodes that are two or more hops away from the gateway. This results in severe unfairness and causes starvation of flows travelling multiple hops. Our approaches are capable of ensuring fair rate control mechanism in wireless mesh network
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