| EDCA机制下实时业务多跳传输仿真分析 |
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| 引用本文： | 袁爽,武穆清,王彬.EDCA机制下实时业务多跳传输仿真分析[J].通信技术,2010,43(2):152-154. |
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| 作者姓名： | 袁爽 武穆清 王彬 |
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| 作者单位： | 北京邮电大学,信息与通信工程学院,北京,100876 |
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| 摘 要： | 在AdHoc无线自组织多跳网络中,IEEE802.11e协议采用了增强型分布信道接入机制,用于为实时多媒体业务提供有效的QoS保证机制。简单介绍和对比了802.11分布式协调功能和802.11e增强型分布信道接入机制两种信道接入机制,并通过使用网络仿真软件OPNET,模拟了实时的视、音频业务在802.11分布信道接入机制和802.11e增强型分布信道接入机制信道接入机制下在不同网络负载下的性能并进行了仿真分析。
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| 关 键 词： | 自组织 增强型分布信道接入机制 音频 视频 |
Multi-hop Transmission Simulation of Real-time Services with EDCA Mechanism |
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| YUAN Shuang,WU Mu-qing,WANG Bin.Multi-hop Transmission Simulation of Real-time Services with EDCA Mechanism[J].Communications Technology,2010,43(2):152-154. |
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| Authors: | YUAN Shuang WU Mu-qing WANG Bin |
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| Affiliation: | YUAN Shuang,WU Mu-qing,WANG Bin (School of Information , Communication Engineering,Beijing University of Posts , Telecommunications,Beijing 100876,China) |
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| Abstract: | In Ad Hoc multi-hop networks, IEEE802.11e protocol adopts enhanced distributed channel access (EDCA) mechanism, which is used to provide QoS assurance mechanism for real-time multimedia services. This paper briefs and compares 802.11 DCF mechanism and 802.11e EDCA mechanism. The performances of real-time audio and video services in 802.11 DCF mechanism and 802.11e EDCA mechanism and with different network loads are simulated on OPNET platform. Finally, the paper gives the simulation result and analysis. |
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| Keywords: | Ad Hoc EDCA audio video |
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