Message-Passing Algorithms for Coordinated Spectrum Sensing in Cognitive Radio Networks

被引：8

作者：

Lee, Sang Hyun ^{[1
]}

Shamaiah, Manohar ^{[1
]}

Vikalo, Haris ^{[1
]}

Vishwanath, Sriram ^{[1
]}

机构：

[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 04期

关键词：

Coordinated spectrum sensing; message-passing algorithm; cognitive radios;

D O I：

10.1109/LCOMM.2013.021913.130013

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This letter presents distributed algorithms that enable efficient spectrum sensing in cognitive radio networks. In the proposed setting, each node in the system detects different channels in a cooperative fashion in order to improve access to the spectral resources available to the cognitive radio network. The developed scheme utilizes a message-passing framework for efficient channel assignment. Simulation results establish that this class of algorithms outperform existing techniques and improves the overall sensing performance of the system.

引用

页码：812 / 815

页数：4

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