Decentralized Dynamic Spectrum Access for Cognitive Radios: Cooperative Design of a Non-Cooperative Game

被引：124

作者：

Maskery, Michael ^{[1
]}

Krishnamurthy, Vikram ^{[1
]}

Zhao, Qing ^{[2
]}

机构：

[1] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V6T 1Z4, Canada

[2] Univ Calif Davis, Dept Elect & Comp Engn, Davis, CA 95616 USA

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 2009年 / 57卷 / 02期

基金：

美国国家科学基金会;

关键词：

Cognitive radio; dynamic spectrum access; game theory; stochastic approximation; correlated equilibrium; POWER-CONTROL;

D O I：

10.1109/TCOMM.2009.02.070158

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We consider dynamic spectrum access among cognitive radios from an adaptive, game theoretic learning perspective. Spectrum-agile cognitive radios compete for channels temporarily vacated by licensed primary users in order to satisfy their own demands while minimizing interference. For both slowly varying primary user activity and slowly varying statistics of "fast" primary user activity, we apply an adaptive regret based learning procedure which tracks the set of correlated equilibria of the game. treated as a distributed stochastic approximation. This procedure is shown to perform very well compared with other similar adaptive algorithms. We also estimate channel contention for a simple CSMA channel sharing scheme.

引用

页码：459 / 469

页数：11

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