Design of MAC Scheme in Unsaturated Cognitive Radio Networks

XIE Xiao-ke; TANG Jing-min; LI Jing-ye; CAI Ran; ZHAO Ming

doi:10.3969/j.issn.0372-2112.2013.06.015

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Design of MAC Scheme in Unsaturated Cognitive Radio Networks

更新时间：2025-07-16

- Design of MAC Scheme in Unsaturated Cognitive Radio Networks
- Acta Electronica Sinica Vol. 41, Issue 6, Pages: 1140-1145(2013)
- 作者机构：
  
  1. 北京邮电大学服务科学研究中心,北京,100876
  2. 昆明理工大学信息工程与自动化学院,云南,昆明,650500
  3. 北京邮电大学网络体系构建与融合北京市重点实验室,北京,100876
  4. 北京邮电大学服务科学研究中心,北京,100876
  5. 昆明理工大学信息工程与自动化学院,云南,昆明,650500
  6. 北京邮电大学网络体系构建与融合北京市重点实验室,北京,100876
- 作者简介：
- 基金信息：
  
  Talent Training Project of Yunnan Province (No.KKSY20103029)
- DOI：10.3969/j.issn.0372-2112.2013.06.015
  CLC： TN92
- Published：2013
- 稿件说明：
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XIE Xiao-ke, TANG Jing-min, LI Jing-ye, et al. Design of MAC Scheme in Unsaturated Cognitive Radio Networks[J]. Acta Electronica Sinica, 2013, 41(6): 1140-1145.
DOI：

XIE Xiao-ke, TANG Jing-min, LI Jing-ye, et al. Design of MAC Scheme in Unsaturated Cognitive Radio Networks[J]. Acta Electronica Sinica, 2013, 41(6): 1140-1145. DOI： 10.3969/j.issn.0372-2112.2013.06.015.

摘要

针对具有连续性接入需求的业务

论文融合时分多址接入技术和竞争窗口差分服务机制

提出了具有连续性保障的无线接入协议:CP-MAC (MAC with Continuity Provisioning)协议.通过对业务等级划分

保障了连续用户的接入概率.并基于Markov模型

给出了非饱和认知无线电网络的系统容量

接入时延和被阻塞概率的数学解析式.最后

通过与现存的MAC接入协议比较

CP-MAC协议在不降低系统容量的同时

提高了连续用户的接入概率

并降低了其接入时延.

Abstract

This paper proposes a new media access control protocol with continuity provisioning (CP-MAC) by converging time division multiple access and contention window differential service mechanism for the continuous services.The continuous access probability would be guaranteed by a priority method.We give the mathematical framework by Markov chain model in terms of the system capacity

latency and the blocked gain of the general users in unsaturated networks.Compared with the current protocols

CP-MAC can access the network with a higher probability and lower latency while there is no any system capacity loss for the continuous users.

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1Department of Electronic Engineering,Tsinghua University

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