Context-aware opportunistic routing in mobile ad-hoc networks incorporating node mobility

2014 IEEE Wireless Communications and Networking Conference (WCNC) Pub Date : 2014-04-06 DOI:10.1109/WCNC.2014.6952640

Zhongliang Zhao, D. Rosário, T. Braun, E. Cerqueira

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引用次数: 30

Abstract

Opportunistic routing (OR) employs a list of candidates to improve reliability of wireless transmission. However, list-based OR features restrict the freedom of opportunism, since only the listed nodes can compete for packet forwarding. Additionally, the list is statically generated based on a single metric prior to data transmission, which is not appropriate for mobile ad-hoc networks. This paper provides a thorough performance evaluation of a new protocol - Context-aware Opportunistic Routing (COR). The contributions of COR are threefold. First, it uses various types of context information simultaneously such as link quality, geographic progress, and residual energy of nodes to make routing decisions. Second, it allows all qualified nodes to participate in packet forwarding. Third, it exploits the relative mobility of nodes to further improve performance. Simulation results show that COR can provide efficient routing in mobile environments, and it outperforms existing solutions that solely rely on a single metric by nearly 20-40 %.

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结合节点移动性的移动ad-hoc网络中的上下文感知机会路由

机会路由(OR)采用候选列表来提高无线传输的可靠性。然而，基于列表的OR特性限制了机会主义的自由，因为只有列出的节点可以竞争数据包转发。此外，该列表是基于数据传输之前的单个度量静态生成的，这不适用于移动ad-hoc网络。本文对一种新的协议——上下文感知机会路由(COR)进行了全面的性能评估。COR的贡献是三重的。首先，它同时使用各种类型的上下文信息，如链路质量、地理进展、节点剩余能量等进行路由决策。其次，它允许所有符合条件的节点参与数据包转发。第三，利用节点的相对移动性进一步提高性能。仿真结果表明，COR可以在移动环境中提供高效的路由，并且比仅依赖单一度量的现有解决方案高出近20- 40%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2014 IEEE Wireless Communications and Networking Conference (WCNC)

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