%0 Journal Article
%A LIAO Yong
%A WANG Dan
%A WEI Hai-bo
%A YANG Shi-zhong
%T An Optimal Channel Assignment in Hybrid Network Based on Cognitive Radio
%D 2013
%R 10.13190/j.jbupt.2013.06.008
%J Journal of Beijing University of Posts and Telecommunications
%P 37-40
%V 36
%N 6
%X <p>A solution is put forward that makes access point (AP) access into the primary user's channel in the identity of cognitive user under the precondition of guaranteeing primary user's quality of service, so as to share the channel resource of primary user effectively. It models the channel assignment as an integer linear programming issue and puts forward a hybrid optimal channel assignment algorithm (HOCA). Based on minimum spanning tree algorithm of connected weighted graph, the algorithm can allocate the minimum interfered channel for primary user and cognitive AP fast and efficiently in its own frequency band of primary user and cognitive AP. HOCA algorithm and other two channel assignment algorithms, near-optimal opportunistic channel allocation and near optimal frequency assignment-2 are analyzed. It is testified that HOCA algorithm can effectively improve the throughput of cognitive user.</p>
%U https://journal.bupt.edu.cn/EN/10.13190/j.jbupt.2013.06.008