Resistance to Interference for OFDM-Based Cognitive Radio Systems

被引：0
|
作者：
Xuan, Guixin [1 ]
Yang, Xiaoguang [1 ]
Zhao, Youhua [1 ]
Zeng, Fanxin [1 ]
Zhang, Zhenyu [1 ]
机构：
[1] Chongqing Commun Inst, Chongqing, Peoples R China
来源：
2012 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING (WICOM) | 2012年
关键词：
interference cancellation; zero-padding method; cognitive radio systems; orthogonal frequency division multiplexing technique; SIDELOBE SUPPRESSION; CANCELLATION;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Based on zero-padding idea, we propose a simple way to resist the interference between licensed users and cognitive users for cognitive radio (CR) systems adopting orthogonal frequency division multiplexing (OFDM) technique. Different from the traditional methods, the presented interference resistance way for OFDM-based CR systems only shuts off the sub-channels occupied by the licensed users and continues to work in the remainder sub-channels at the cost of lower data rate, which need not shift all communication bands. Simulation results show that the proposed method can obtain desirable resistance to the interference between licensed users and cognitive users and possess lower realization complexity for OFDM-based CR systems.
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页数：4
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