A Log-likelihood Ratio Nonuniform Quantization Scheme for Cooperative Spectrum Sensing

被引：0
|
作者：
Liang, Hengjing [1 ]
Chen, Yading [1 ]
Li, Shaoqian [1 ]
机构：
[1] Univ Elect Sci & Technol China, Natl Key Lab Commun, Chengdu 610054, Sichuan Provinc, Peoples R China
来源：
2012 INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING (WICOM) | 2012年
关键词：
cognitive radio; cooperative spectrum sensing; data fusion; quantization;
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：
Data fusion has been a key technology of cooperative spectrum sensing in cognitive radio. To solve network collaborative information compression distortion under limited bandwidth, we proposed a nonuniform quantization scheme for each sensing nodes. Simulation results show that the proposed scheme could improve detection probability compared to conventional uniform quantization. And the fusion performance without distortion could be achieved with proposed quantizer by only 3 bits quantization.
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页数：4
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