Spectrum-aware Anti-intermittence Routing in Distributed Cognitive radio Network
In the distributed Cognitive Radio Networks, routing should consider how to dynamically select frequency band for either per flow throughput guarantee or global spectrum utilization. Since different second users may sense different spectrum availability, efficiently sharing this information in the dynamic spectrum environment still remains challenging, however, collaborative route and spectrum selection always face with non-isotonicity problem in flooding-based route discovery. In this paper, firstly, the problem of efficient spectrum allocation for multi-hops transmissions is invested. Secondly, after efficiently analyzing primary user system channel-usage, a novel decoupled strategy for prolonging route lifetime and managing spectrum availably is designed. Simulation results show that, comparing to other typical approaches, our protocol provides longer routing lifetime to the dynamic spectrum environment.
Hao He Lei Gong Wanbin Tang Jun Wang Shaoqian Li
National Key Lab of Communications University of Electronic Science and Technology of China Chengdu, China
国际会议
2009国际通信电路与系统学术会议(ICCCAS 2009)(2009 International Conference on Communications，Circuits and Systems)
成都
英文
236-240
2009-07-23（万方平台首次上网日期，不代表论文的发表时间）