A Competition-Based Spectrum Sensing Prediction Algorithm for Wireless Cognitive Networks
Xu Ming · Computer Engineering and Science · 2009
Wireless cognitive network is regarded as the next generation wireless network.Research on spectrum sensing and access algorithms is always the hot research area of the cognitive network.This paper proposes a centralized spectrum sensing and access algorithm for a given network topology and the multiple network traffic,and proposes a new minimum clique cover algorithm to model the contention relation of network traffic.And through a maximum matching algorithm,the whole network can get a maximum spectrum usage.By simulation,we demonstrate that the new algorithm can improve the expected network throughput by at least 30%.