A Lightweight Algorithm for Probability-Based Spectrum Decision Scheme in Multiple Channels Cognitive Radio Networks

被引：9

作者：

Do, Cuong T. ^{[1
]}

Tran, Nguyen H. ^{[1
]}

Hong, Choong Seon ^{[1
]}

Lee, Sungwon ^{[1
]}

Lee, Jae-Jo ^{[2
]}

Lee, Wontae ^{[2
]}

机构：

[1] Kuyng Hee Univ, Dept Comp Enginneering, Seoul, South Korea

[2] Korea Electrotechnol Res Inst, Ansan, South Korea

来源：

IEEE COMMUNICATIONS LETTERS | 2013年 / 17卷 / 03期

关键词：

Cognitive radio; dynamic spectrum access; multiple channels; SOCIAL OPTIMIZATION; SYSTEMS; ACCESS;

D O I：

10.1109/LCOMM.2013.012313.122589

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Compare with the sensing-based spectrum decision scheme, the probability-based spectrum decision scheme has been shown to yield a shorter queuing delay time in Cognitive Radio (CR) system that consists of many Primary Users (PUs) and Secondary Users (SUs). However, the former scheme had cumbersome algorithms and slowly converging speed. In this paper, by introducing Lagrange function, we propose a lightweight algorithm with the computational effort O(N) to define the optimal distribution probability vector. Numerical results demonstrate a high degree of accuracy for the derived expressions.

引用

页码：509 / 512

页数：4

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