一种基于联合频谱分配技术的认知网络路由协议

认知无线网络中,由于不同认知节点可用频道的差异和频繁的变化,使得传统的无线路由算法无法在认知无线网络中工作.本文提出了一种基于频道可用率和路径累计时延的路由机制,既保证了数据的投递率,又降低了数据投递延迟.实验表明,该机制在一级网络干扰频繁和链路质量多变的环境下具有更好的路由性能.

A novel routing protocol with spectrum assignment for cognitive radio networks

In cognitive radio networks, nodes have different usable channels and the channels change frequently, which affects networks routing. In this paper, a new routing strategy based on the probabilities of channels and delays of path is proposed which has high data delivery probabilities and low delays. The simulation results show that our strategy has better performance in the scenarios where interferes of primary users and link loss rate change frequently.