| 基于OPNET的无线信道接人协议仿真 |
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| 引用本文： | 徐磊,方红雨,李晓辉.基于OPNET的无线信道接人协议仿真[J].安徽教育学院学报,2007,25(6):25-29. |
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| 作者姓名： | 徐磊 方红雨 李晓辉 |
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| 作者单位： | 安徽大学电子科学与技术学院,安徽,合肥,230039 |
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| 摘 要： | 基于对CSMA/CA和ALOHA协议的研究,利用OPNET软件自带的支持CSMA/CA协议的节点模型构建网络模型。结合仿真结果,利用Mathematica软件,绘制了CSMA/CA协议吞吐量特性图,并与ALOHA的吞吐量特性图进行比较,证明了在任意业务总负载的情况下,CSMA/CA协议都表现出比ALOHA协议更加优越的性能。证实了在保证吞吐量性能的前提下,通过网络参数的配置,使网络的性能达到最优化的可行性,并且揭示了网络参数的关联性,指出了网络最优化参数的唯一性。
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| 关 键 词： | OPNET ALOHA CAMA/CA Mathematica 仿真 吞吐量 最优化 |
| 文章编号： | 1001-5116（2007）06-0025-05 |
| 收稿时间： | 2007-07-20 |
| 修稿时间： | 2007年7月20日 |
Simulation of Wireless Channel Access Protocol Based on OPNET |
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| XU Lei,FANG Hong-yu,LI Xiao-hui.Simulation of Wireless Channel Access Protocol Based on OPNET[J].Journal of Anhui Institute of Education,2007,25(6):25-29. |
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| Authors: | XU Lei FANG Hong-yu LI Xiao-hui |
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| Institution: | College of Electronic Science and Technology, Anhui University, Hefei 230039,China |
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| Abstract: | The network model is constructed by using the node model of OPNET software which supports the CSMA/CA protocol based on the research on the protocol of CSMA/CA and ALOHA.With the results of simulation,the throughput characteristic map of CSMA/CA protocol is drawn by using Mathematica software.The comparisons between the throughput characteristic map of the protocol of ALOHA and CSMA/CA show that CSMA/CA has better performance comparing with ALOHA at any case of total traffic load.The feasibility of the network optimization performance is proved by configuring network parameters on the premise of ensuring the throughout performance,the relationship between network parameters and the uniqueness of network optimization parameters are indicated. |
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| Keywords: | OPNET ALOHA CAMA/CA mathematica simulation throughput optimization |
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