| 超宽带多跳无线网络中ARQ机制的优化 |
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| 引用本文： | 王玲,朱光喜,吴伟民,王辰琛.超宽带多跳无线网络中ARQ机制的优化[J].计算机科学,2010,37(6):51-55. |
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| 作者姓名： | 王玲 朱光喜 吴伟民 王辰琛 |
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| 作者单位： | 1. 华中科技大学电子与信息工程系,武汉,430074
2. 国家光电实验室光通信与智能网络研究部,武汉,430074 |
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| 基金项目： | "新一代宽带无线移动通信网"国家科技重大专项:TD-LTE无线综合测试仪表开发，IMT-Advanced新型无线传输技术研发，十一五863计划信息技术领域超宽带无线通信系统研发与应用示范重点项目:UWB共性技术研究与验证系统研发，国际科技合作计划，湖北省自然科学基金项目 |
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| 摘 要： | 针对超宽带多跳无线网络,对中继节点参与ARQ机制的可行性进行了研究.在现有研究的基础上结合部分窗口多拒绝ARQ设计出一个能使节点兼顾终端和中继节点ARQ机制的RLC子层协议.接着在对超宽带室内视距(LOS)信道模型理论分析的基础上,针对典型的两跳网络,对比了使用中继ARQ和不使用中继ARQ两种情况下得到的仿真结果,证明了中继ARQ能提高超宽带多跳无线网络的吞吐率和时延性能.
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| 关 键 词： | 超宽带 多跳 中继 |
| 收稿时间： | 2009/7/15 0:00:00 |
| 修稿时间： | 2009/9/25 0:00:00 |
Optimization of ARQ Mechanism in Multi-hop UWB Network |
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| WANG Ling,ZHU Guang-xi,WU Wei-min,WANG Cen-chen.Optimization of ARQ Mechanism in Multi-hop UWB Network[J].Computer Science,2010,37(6):51-55. |
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| Authors: | WANG Ling ZHU Guang-xi WU Wei-min WANG Cen-chen |
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| Affiliation: | (Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China);(Division of Optical Communication and Intelligent Network, Wuhan National Laboratory for Optoelectronics, Wuhan 430074, China) |
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| Abstract: | This paper did some researches on the ARQ mechanisms which provides the probability of involving the relay nodes into the mechanisms for ultra-wideband multi-hop wireless network,and based on the researches designed a RLC sublayer combining PWMA and Relay ARQ, which can perform as both of the end node and the relay node. Follow this,this paper made a academic analysis of the ultra wideband wireless channel models and simulated the network model under ordinary circumstances and the network model which used ARQ mechanism designed in this paper for representative two-hop wireless network,Compared the simulation results,got the conclusion that using ARQ mechanism designed for ultra-wideband multi-hop network in this paper significantly enhances the throughput and time delay characteristic of the system. |
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| Keywords: | ARQ |
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