| 混合式动态频谱接入协议的研究 |
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| 引用本文： | 李娟,明德廷,李超. 混合式动态频谱接入协议的研究[J]. 计算机工程与设计, 2010, 31(3) |
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| 作者姓名： | 李娟 明德廷 李超 |
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| 作者单位： | 1. 江西农业大学,计算机与信息工程学院,江西,南昌,330045
2. 青岛朗讯科技通讯有限公司,山东,青岛,266101 |
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| 摘 要： | 为了避免认知用户对主要用户的干扰,实现了频谱移动性的要求,提出了一种Ad Hoc认知无线电网络下的动态频谱接入协议.先使用分布式频谱侦测技术,建立基于AdHoc认知无线电的网络模型.认知用户利用马尔科夫模型预测可用频段,从而在每个时隙选择预测的可用频段进行侦测,降低设备技术要求,并节约能量.最后,给出了相应的认知无线电频谱接入方案和频谱分配算法,为每一条空闲频段选择合适的通信组,实现系统频谱利用的最大化.
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| 关 键 词： | 认知无线电 马尔科夫模型 动态频谱接入 多跳无线网 频谱分配 |
Research of hybrid dynamic spectrum access protocol |
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| LI Juan,MING De-ting,LI Chao. Research of hybrid dynamic spectrum access protocol[J]. Computer Engineering and Design, 2010, 31(3) |
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| Authors: | LI Juan MING De-ting LI Chao |
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| Affiliation: | LI Juan 1,MING De-ting 1,LI Chao 2 (1.College of Computer , Information,Jiangxi Agricultural University,Nanchang 330045,China,2.Qingdao Lucent Technologies Communication Limited Company,Qingdao 266101,China) |
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| Abstract: | To avoid interfering with the main users of cognitive users and achieve mobility requirements of the spectrum,a spectrum sharing and access protocol in Ad Hoc cognitive radio network is proposed.Firstly,the frame of network based on the Ad Hoc cognitive radio network is formed.Choosing spectrum for sensing based Markov model is set forth.Cognitive users sense the chosen spectrum but not the whole spectrum to low down the needs of equipment capability and save energy.At the end,the algorithm of cognitive rad... |
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| Keywords: | cognitive radio model of Markov spectrum access Ad Hoc network spectrum allocate |
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