Comparative analysis of link quality metrics and routing protocols for optimal route construction in wireless mesh networks
Comparative analysis of link quality metrics and routing protocols for optimal route construction in wireless mesh networks
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DOI：
10.1016/j.adhoc.2011.03.011
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发表时间：
2011-09
期刊：
影响因子：
4.8
通讯作者：
Seongkwan Kim;Okhwan Lee;Sunghyun Choi;Sung-Ju Lee
中科院分区：
文献类型：
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作者：
Seongkwan Kim;Okhwan Lee;Sunghyun Choi;Sung-Ju Lee
我们对影响无线网状网络端到端性能的各种路由策略进行了比较分析。我们首先改进众所周知的链路质量指标和路由算法，以增强无线网状网络环境中的性能。然后，我们研究路由最优性，即是否建立了相对于给定链路质量度量的最佳端到端路由，及其对网络性能的影响。在我们的评估中，网络拓扑、并发流数量和干扰类型各不相同，我们发现，由于路由协议的不当行为、链路度量设计不准确、流间干扰及其相互作用，常常会建立非最佳路由。通过广泛的仿真分析，我们提出了有关如何设计无线链路指标和路由算法以增强网络容量并提供可靠连接的见解。
We provide a comparative analysis of various routing strategies that affect the end-to-end performance in wireless mesh networks. We first improve well-known link quality metrics and routing algorithms to enhance performance in wireless mesh environments. We then investigate theroute optimality, i.e., whether the best end-to-end route with respect to a given link quality metric is established, and its impact on the network performance. Network topologies, number of concurrent flows, and interference types are varied in our evaluation and we find that a non-optimal route is often established because of the routing protocol’s misbehavior, inaccurate link metric design, interflow interference, and their interplay. Through extensive simulation analysis, we present insights on how to design wireless link metrics and routing algorithms to enhance the network capacity and provide reliable connectivity.