Cross-Layer Metrics for Reliable Routing in Wireless Mesh Networks
Cross-Layer Metrics for Reliable Routing in Wireless Mesh Networks
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DOI：
10.1109/tnet.2012.2230337
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发表时间：
2013-06
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影响因子：
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通讯作者：
Stefano Paris;C. Nita-Rotaru;F. Martignon;A. Capone
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文献类型：
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作者：
Stefano Paris;C. Nita-Rotaru;F. Martignon;A. Capone
无线网状网络（WMNs）已成为一种灵活且低成本的网络基础设施，其中由不同用户管理的异构网状路由器协作以扩展网络覆盖范围。本文提出了一种新的路由度量，预期转发计数器（EFW），和两个进一步的变体，以科普自私行为的问题（即，分组丢弃）。EFW结合，在跨层的时尚，路由层的转发行为的观察与MAC层的无线链路质量的测量，以选择最可靠和高性能的path.We评估建议的指标，通过模拟和实际部署在两个不同的无线测试beds，执行按需安全拜占庭弹性路由（ODSBR）协议和预期传输计数器（ETX）的比较分析。结果表明，我们的跨层指标准确地捕捉路径的可靠性，并大大提高了WMN的性能，即使当一个高比例的网络节点行为不端。
Wireless mesh networks (WMNs) have emerged as a flexible and low-cost network infrastructure, where heterogeneous mesh routers managed by different users collaborate to extend network coverage. This paper proposes a novel routing metric, Expected Forwarded Counter (EFW), and two further variants, to cope with the problem of selfish behavior (i.e., packet dropping) of mesh routers in a WMN. EFW combines, in a cross-layer fashion, routing-layer observations of forwarding behavior with MAC-layer measurements of wireless link quality to select the most reliable and high-performance path. We evaluate the proposed metrics both through simulations and real-life deployments on two different wireless testbeds, performing a comparative analysis with On-Demand Secure Byzantine Resilient Routing (ODSBR) Protocol and Expected Transmission Counter (ETX). The results show that our cross-layer metrics accurately capture the path reliability and considerably increase the WMN performance, even when a high percentage of network nodes misbehave.