认知无线网络：关键技术与研究现状

综述了认知无线网络的关键技术和研究进展。首先,从物理层的频谱感知和网络层的可用带宽估计两方面对网络环境感知技术进行了总结和归纳;其次,对目前的多信道MAC协议进行了分类,重点分析了不同多信道MAC协议实现方法的优缺点和适用场景;然后,对认知无线网络中智能决策和网络重构的实现框架进行了介绍,并总结了其中需要突破的关键技术;最后,对认知无线网络的重点研究方向给出了建议。

Cognitive wireless networks: key techniques and sate of the art

Key techniques in cognitive wireless networks and the state-of-the-art of this research were surveyed.The first focus was on the techniques to obtain network information,which was classified into spectrum sensing in PHY layer and available bandwidth estimation in network layer.Second,the design of multi-channel MAC protocols was introduced.In particular,both the characteristics and the applicable scenarios were analyzed for different types of multi-channel MAC protocols.Third,key techniques in the intellige...