A MWM Relay Assignment Strategy Based on Spectrum Availability for Cognitive Radio Networks

被引：0
作者：
Cao, Tianwei [1 ]
Xie, Wei [1 ]
Wang, Cong [1 ]
Xu, Youyun [1 ]
机构：
[1] PLA Univ Sci & Technol, Coll Commun Engn, Nanjing 210007, Jiangsu, Peoples R China
来源：
2013 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS AND SIGNAL PROCESSING (WCSP 2013) | 2013年
关键词：
cooperative communication; cognitive radio networks; spectrum availability; relay assignment; effective channel capacity; COOPERATIVE DIVERSITY;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In cognitive radio networks (CRNs), owing to the restriction of primary users (PUs), the traditional relay assignment based on Shannon channel capacity does not suit to secondary users (SUs). It is necessary to consider spectrum availability when cooperative communication (CC) is carried out in CRNs. In this paper, we propose the concept of Effective Channel Capacity (ECC) according to frequency band occupancy state, and build a Maximum Weighted Matching (MWM) problem where FCC is the weight. Then we find an optimal relay assignment which can maximize global FCC by solving the problem using Kuhn-Munkres (KM) algorithm. The simulation results indicate the necessity of our work for CRNs.
引用
收藏
页数：6
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