认知无线传感器网络分簇路由协议综述

Survey on cluster-based routing protocols for cognitive radio sensor networks

路由协议能实现认知无线传感器网络(CRSN, cognitive radio sensor network)内部感知数据的有效汇聚传输,尤其是分簇路由协议能进一步降低路由选择的复杂度、提升网络可扩展性,对整体网络性能至关重要。因此,针对CRSN分簇路由协议进行综述研究。首先,在简要介绍CRSN分簇概念和优势的基础上,阐述CRSN分簇算法设计考虑的主要因素。其次,探讨CRSN分簇路由协议设计面临的挑战及应遵循的基本设计原则。再次,系统的分析和总结CRSN分簇路由协议的研究现状。最后,指出CRSN分簇路由协议研究中亟待解决的问题及未来的研究方向。

Routing protocols could achieve efficient convergecast transmission of sensed data in cognitive radio sensor network （CRSN）, and it is of vital importance for the whole network performance. In particular, cluster-based routing protocols could further lower routing selection complexity and improve scalability. Therefore, an overview of cluster-based routing protocols for CRSN was provided. Firstly, after a brief introduction to the concept and advantages of clustering in CRSN, the major factors concerning clustering algorithm design were pointed out. Secondly, the challenges faced by routing protocol design in CRSN and basic design principles were explored. Thirdly, the previous work of cluster-based routing protocols for CRSN was systematically analyzed and summarized. Finally, issues that require urgent solutions and future research directions were suggested.