计算机科学 ›› 2010, Vol. 37 ›› Issue (7): 97-101.
• 计算机网络与信息安全 • 上一篇 下一篇
宋化,林小拉
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SONG Hua,LIN Xiao-la
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摘要: 认知无线电是无线访问领域出现的新技术,目的在于大幅度提高无线频谱的使用。其基本思想是:次用户(非授权用户)在不干扰主用户(授权用户)的条件下允许使用授权频谱。提出一种新的基于独占模式的认知MAC协议。在该协议中,次用户被划分为若干不重叠的组,每个组使用特定的拍卖算法来对其需要租用的信道进行投标。实验表明,这种新协议能够最大化利用频谱资源,并且保证信道在组间分配的公平性和动态性。
关键词: 认知无线电,认知MAC协议,信道租用,独占模式
Abstract: Cognitive radio(CR) is an emerging technology in wireless access,aiming at vastly improving the way in which radio spectrum is utilized.Its basic idea is that a secondary user(unlicensed user) can be permitted to use licensed spectrum,provided that it does not interfere with any primary users(licensed users).This paper proposed a novel cognitive MAC protocol under the property-rights model,in which,secondary users are divided into several non-overlapping groups,and each group users the proposed auction algorithm to bid for leasing the required channels.Simulations indicate that proposed MAC protocol utilizes spectrum resources to the maximum,guarantees the fairness and dynamics of channels allocation among groups.
Key words: Cognitive radio, Cognitive MAC, Channel leasing, Property-rights model
宋化,林小拉. 一种新型面向频谱高利用率的认知MAC协议[J]. 计算机科学, 2010, 37(7): 97-101. https://doi.org/
SONG Hua,LIN Xiao-la. Novel High Spectrum Utilization-oriented Cognitive MAC Protocol[J]. Computer Science, 2010, 37(7): 97-101. https://doi.org/
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