认知无线ad hoc网的多尺度跨层路由协议

doi:10.3969/j.issn.1001-2400.2018.02.014

Abstract

Abstract:

With the aggravation of spectrum scarcity and the rapid increase of wireless service, the cognitive radio ad hoc network has become a hot research topic recently, and efficient routing protocol design is important in application. Owing to the dynamic feature of spectrum opportunity, the route protocol in the cognitive ad hoc network is complex and should be combined with power control and spectrum allocation. This paper proposes a multi-metric cognitive routing protocol MM-CAODV from the cross-layer prospect. They define routing metrics according to Quality of Service requirements, and provide multi-metrics solutions to secondary users considering spectrum opportunity. This paper points out the multi-path problem through the network topology model, analyzes different routing metrics of delay, transmit rate and stability, and then proposes the multi-metric optimization model. Simulation results show that the routing protocol in this paper has better network performance in three parameters: end-to-end delay, throughput, and packet delivery ratio.

Key words: cognitive radio ad hoc networks, cross layer design, quality of service, route metric, network performance

CAO Jing;WU Junsheng;YANG Wenchao;WANG Shuochen. Multi-metric cross layer routing protocol for cognitive radio ad hoc networks[J].Journal of Xidian University, 2018, 45(2): 77-83.

References

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Multi-metric cross layer routing protocol for cognitive radio ad hoc networks

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