| 基于CSM优先级的CogWMN联合路由与信道分配策略 |
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| 引用本文： | 章国安,丁晨莉,包志华.基于CSM优先级的CogWMN联合路由与信道分配策略[J].计算机科学,2012,39(1):53-56. |
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| 作者姓名： | 章国安 丁晨莉 包志华 |
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| 作者单位： | 1. 南通大学电子信息学院 南通226019;东南大学移动通信国家重点实验室 南京210096
2. 南通大学电子信息学院 南通226019 |
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| 基金项目： | 国家自然科学基金，江苏省高校自然科学研究项目，东南大学移动通信国家重点实验室开放研究基金，江苏省南通市应用研究计划项目 |
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| 摘 要： | 认知无线Mesh网络(CogWMN)中的节点可以自主切换通信频率。当节点寻找路由和分配信道时，容易出现信道分配的不均衡化。为了提高非授权频段的利用率，发挥多信道并行传输的优势，提出一种在没有全局控制信道条件下的基于信道统计度量(CSM)优先级的联合路由与信道分配策略，以解决信道分配不均衡化问题，使网络内节点能以较少的跳数接入AP。仿真结果表明，所提策略能提高网络吞吐量和减少网络时延。
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| 关 键 词： | 无线Mesh网络，认知无线电，多信道，信道分配 |
Joint Routing and Channel Assignment Strategy Based on CSM Priorities in CogWMN |
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| ZHANG Guo-an
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DING Chen-li
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BAO Zhi-hua.Joint Routing and Channel Assignment Strategy Based on CSM Priorities in CogWMN[J].Computer Science,2012,39(1):53-56. |
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| Authors: | ZHANG Guo-an DING Chen-li BAO Zhi-hua |
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| Affiliation: | 1(School of Electronics and Information,Nantong University,Nantong 226019,China)1(National Mobile Communications Research Laboratory,Southeast University,Nanjing 210096,China)2 |
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| Abstract: | Cognitive Wireless Mesh Networks (CogWMN) can change their communication frequency actively. When they look for routing and schedule channels,channel allocation seems unbalanced commonly. In order to increase the utility of unlicensed bands and the throughput with multichannel, a kind of joint routing and channel assignment strategy based on channel statics metric (CSM) with priorities without common control channel was proposed. This scheme may handle the unbalanced channel allocation problem and the mesh nodes in network can access AP in fewer hops. The simulation result shows that the proposed strategy can increase the throughput performance and reduce network timcdelay. |
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| Keywords: | Wireless mesh networks Cognitive radio Multi-channel Channel allocation |
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