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首页> 外文会议>2012 International Conference on Wireless Communications amp; Signal Processing >A novel spectrum-aware routing protocol for multi-hop cognitive radio ad hoc networks
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A novel spectrum-aware routing protocol for multi-hop cognitive radio ad hoc networks

机译：一种用于多跳认知无线电自组织网络的新型频谱感知路由协议

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摘要

Cognitive radio (CR) technology is a new communication paradigm that can be a solution to the spectrum scarcity problem. The new spectrum usage pattern necessitates corresponding routing protocols to exploit the available spectrum opportunistically. In this paper, we propose a novel Spectrum-Aware Routing Protocol (SARP) for multi-hop cognitive radio ad hoc networks. SARP integrates channel choice with route discovery to cope with dynamic spectrum by considering the actions of PUs. In addition, a local route maintenance and recovery mechanism is presented to deal with sudden appearance of PUs. Rerouting probability and channel usage ratio are introduced to evaluate the performance of this routing protocol. Simulation results show that the proposed scheme reduces rerouting probability obviously and increases channel usage ratio of SUs significantly.
机译：认知无线电（CR）技术是一种新的通信范例，可以解决频谱短缺问题。新的频谱使用模式需要相应的路由协议来机会性地利用可用频谱。在本文中，我们提出了一种用于多跳认知无线电自组织网络的新型频谱感知路由协议（SARP）。 SARP通过考虑PU的动作，将信道选择与路由发现相结合，以应对动态频谱。此外，提出了一种本地路由维护和恢复机制来处理PU的突然出现。引入重路由概率和信道使用率以评估此路由协议的性能。仿真结果表明，该方案显着降低了重路由概率，并显着提高了SU的信道利用率。

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