| 认知无线电自组织网络带宽动态分配多信道MAC协议 |
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| 引用本文： | 高培勇,陈靖,朱清超,康巧燕.认知无线电自组织网络带宽动态分配多信道MAC协议[J].中国科技论文在线,2014(4):375-379. |
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| 作者姓名： | 高培勇 陈靖 朱清超 康巧燕 |
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| 作者单位： | 空军工程大学信息与导航学院,西安710077 |
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| 基金项目： | 国家自然科学基金资助项目（61201209） |
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| 摘 要： | 针对目前经典的本地协作多信道MAC协议(LCM-MAC)缺乏频谱感知和带宽动态分配问题,提出一种认知无线电自组织网络(cognitive radio Ad hoc networks,CRAHNs)带宽动态分配多信道MAC(CR-LMAC)协议。通过引入频谱感知机制和新的带宽分配策略模型,改进LCM-MAC协议,使其具备空闲信道感知和动态分配带宽的自适应能力。仿真结果表明,改进后的协议性能优于LCM-MAC,在网络总吞吐量和端到端时延等方面有较大提高和改善。
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| 关 键 词： | 认知无线电自组织网络 媒体接入控制协议 频谱感知 带宽分配 |
Multi-channel MAC protocol for dynamic bandwidth allocation in CRAHNs |
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| Gao Peiyong,Chen Jing,Zhu Qingchao,Kang Qiaoyan.Multi-channel MAC protocol for dynamic bandwidth allocation in CRAHNs[J].Sciencepaper Online,2014(4):375-379. |
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| Authors: | Gao Peiyong Chen Jing Zhu Qingchao Kang Qiaoyan |
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| Institution: | (College of Information and Navigation, Air Force Engineering University, Xi’ an 710077, China) |
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| Abstract: | A multi-channel MAC （CR-LMAC）protocol for dynamic bandwidth allocation in cognitive radio wireless Ad hoc net-work is proposed to solve the problem of the classic local cooperative multi-channel MAC protocol （LCM-MAC）that lacks spec-trum sensing and dynamic bandwidth allocation.The LCM-MAC protocol is improved by introducing the spectrum sensing capa-bilities and a new bandwidth allocation strategy model into its framework and has the adaptive ability of sensing idle channel and dynamically allocating bandwidth.Simulation results show that the improved protocol has a great improvement in overall network throughput and the end to end delay,and has a better performance than the original LCM-MAC protocol. |
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| Keywords: | cognitive radio Ad hoc networks MAC protocol spectrum sensing bandwidth allocation |
| 本文献已被 CNKI 维普 等数据库收录！ |
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