| 认知无线网络按需协同感知和信道分配 |
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| 引用本文： | 李保罡,刘元安,刘凯明. 认知无线网络按需协同感知和信道分配[J]. 通信学报, 2011, 32(11): 103-109 |
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| 作者姓名： | 李保罡 刘元安 刘凯明 |
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| 作者单位： | 北京邮电大学电子工程学院,北京,100876 |
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| 基金项目： | 国家重大专项，国家自然科学基金资助项目，中央高校基本科研业务费专项基金资助项目，安全生产智能监控北京市重点实验室资助项目 |
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| 摘 要： | 结合路由发现和维护过程中控制消息的广播特性,提出将频谱协同感知和信道分配的交互信息部分融入路由控制消息的方法。认知用户的信息交互随按需路由发现过程而启动,并在路由沿线建立协同感知节点簇,利用路由维护消息对该节点簇进行维护。同时以认知网络容量最大化为目标,提出将频谱协同感知和信道分配联合设计。仿真分析表明,减少了认知用户的信息交互开销,缓解了认知无线网络中控制信道的瓶颈影响,对空闲频谱进行了高效再利用。
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| 关 键 词： | 认知无线网络 协同感知 控制信道 信道分配 路由发现 |
On-demand cooperative spectrum sensing and channel allocation in cognitive wireless networks |
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| LI Bao-gang,LIU Yuan-an,LIU Kai-ming. On-demand cooperative spectrum sensing and channel allocation in cognitive wireless networks[J]. Journal on Communications, 2011, 32(11): 103-109 |
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| Authors: | LI Bao-gang LIU Yuan-an LIU Kai-ming |
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| Affiliation: | LI Bao-gang,LIU Yuan-an,LIU Kai-ming(School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China) |
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| Abstract: | Combining of the broadcast feature of control messages in the route discovery and maintenance process,a method to make the mutual information of the spectrum sensing and channel allocation into the route control messages was proposed.The information exchange of cognitive users is started by the route discovery process,and then creates the node cluster for cooperative sensing along the route path,which is maintained by the route maintenance messages.In or-der to maximize the network capacity of cognitive use... |
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| Keywords: | cognitive wireless networks cooperative sensing control channel channel allocation route discovery |
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