Energy-aware routing protocol for cognitive radio ad hoc networks
Energy-aware routing protocol for cognitive radio ad hoc networks
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DOI：
10.1049/iet-com.2011.0698
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发表时间：
2012-09
期刊：
影响因子：
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通讯作者：
S. M. Kamruzzaman;Eun-Heon Kim;D. Jeong;W. Jeon
中科院分区：
文献类型：
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作者：
S. M. Kamruzzaman;Eun-Heon Kim;D. Jeong;W. Jeon
路由问题是多跳自组网中最重要的问题之一。在移动认知无线电(CR)网络的路由选择中，需要额外考虑对每个用户剩余能量的约束和主用户保护的要求。提出了一种基于动态源路由的认知无线电自组网频谱和能量感知路由协议。为了在预留带宽的情况下按需建立路径，该协议将路径选择和信道时隙分配联合起来。所提出的SER协议可以均衡能量消耗，减少路由开销，消除节点之间的竞争，并将业务分解到不同的信道/时隙上。大量仿真表明，该协议在系统吞吐量、网络生存时间和平均消息时延等方面取得了较好的性能。
Routing is one of the most important issues in multihop ad hoc networks. In the routing for mobile cognitive radio (CR) networks, the constraints on residual energy of each user and the requirements for primary user protection should be additionally taken into account. This study proposes a spectrum and energy-aware routing (SER) protocol for CR ad hoc networks, which is based on the dynamic source routing. To establish routes on-demand with reserved bandwidth, the protocol involves route selection and channel-timeslot allocation jointly. The proposed SER protocol can balance energy consumption, reduce routing overhead, eliminate contention between nodes and decompose traffics over different channels/timeslots. Extensive simulation shows that the proposed protocol achieves good performance in system throughput, network lifetime and mean message delay.