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论文类型：期刊论文

发表时间：2014-04-29

发表刊物：KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS

收录刊物：SCIE、EI、Scopus

卷号：8

期号：4

页面范围：1324-1343

ISSN号：1976-7277

关键字：Differentiated Service; game theory; priority; cognitive radio networks

摘要：In recent years, the problem of spectrum mobility in Cognitive Radio (CR) Networks has been widely investigated. In order to utilize spectrum resources completely, many spectrum handoff techniques based on game theory have been proposed, but most studies only concern that users how to achieve better payoffs, without much attention to the diverse needs of users. In this paper, we propose a new channel-switching model based on game theory, using a prioritized approach to meet the diverse needs of users in two different modes (CQ and PS). At the same time, this paper proposes some acceleration techniques to reach the Nash equilibrium more efficiently. We evaluate the performance of the proposed schemes depending on priority using real channel availability measurements, and conclude that the channel quality function (CQ) mode provide better service for priority user but the plan-sorting (PS) mode can be more suitable in multiple priority users exist scene.