Routing Protocol Design and Performance Optimization in Cognitive Radio Networks

Abstract

Routing protocol is an important issue in cognitive radio networks. This paper explored the issues and challenges of routing protocol in cognitive radio network from five aspects: hidden terminal, exposed terminal, deafness, cross-layer design, and topology. The existed protocols are classified by the metrics: the establishment of active routing, cross-layer routing, and network performance indicators. Focusing on analyzing performance of routing protocols and design optimized schemes in cognitive radio networks, the advantage and disadvantage of related work were discussed in detail

A Comparison Study on Route Stability of On-Demand Routing Protocols in CRAHNs

“…Huang et al [15] defined highest, medium and lowest spectrum temperature routing metrics based on primary user presence over a link and showed that their protocol establishes a coolest path. In [16], Wu et al presented performance comparison of existing routing protocols in CRAHNs and discussed on minimizing switching delays, improving route maintenance time, improving routing metric and improving throughput.…”