| WLAN中VoIP容量与呼叫准入控制研究 |
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| 引用本文： | 徐建华,吴其林.WLAN中VoIP容量与呼叫准入控制研究[J].巢湖学院学报,2012(3):24-29. |
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| 作者姓名： | 徐建华 吴其林 |
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| 作者单位： | 安徽省教育招生考试院;安徽师范大学数学与计算机科学学院;巢湖学院计算机与信息工程学院 |
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| 基金项目： | 安徽省高校省级自然科学研究项目(项目编号:KJ2012Z266) |
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| 摘 要： | 无线局域网络(WLAN)中实现基于因特网协议的语音(VoIP)通信将面临两个主要的挑战:一是如何提升VoIP容量;二是如何通过准入控制来确保语音的服务质量。论文对以上两个方面的目前研究状态分别进行了详细的阐述:在VoIP容量研究方面,论文指出了VoIP容量在WLAN中还将受接入点瓶颈效应、协议开销、竞争资源的数据流以及多速率信道四种因素的影响;在准入控制方面,论文将目前的准入控制方案分为基于模型的准入控制策略和基于测量的准入控制策略,指出了两种方案的优缺点以及还需要解决的问题。
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| 关 键 词： | 无线局域网络 基于因特网协议的语音 呼叫准入控制 |
RESEARCH ON VOIP CAPACITY AND CALL ADMISSION CONTROL IN WIRELESS LOCAL AREA NETWORK |
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| XU Jian-hua,WU Qi-lin.RESEARCH ON VOIP CAPACITY AND CALL ADMISSION CONTROL IN WIRELESS LOCAL AREA NETWORK[J].Chaohu College Journal,2012(3):24-29. |
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| Authors: | XU Jian-hua WU Qi-lin |
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| Institution: | 1 Anhui Education Examinations Authority,Hefei Anhui 230022)(2 School of Methmatics and Computer Science,Anhui Normal University,Wuhu Anhui 241000)(3 School of Computer and Information Technology,Chaohu Universtiy,Hefei Anhui 238000) |
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| Abstract: | There are two major challenges for deploying Voice over Internet Protocol(VoIP) in Wireless Local Area Network(WLAN): how to improve the VoIP capacity and how to ensure the quality of service of voice by means of call admission control.In this paper,the current research status of the above two aspects are detailedly elaborated.For the research on VoIP capacity,this paper points out that the VoIP capacity can be affected by four factors,namely,bottleneck effect of access point,overhead of protocols,contending data flows and multi-rate channel.For the research on call admission control,this paper categorizes the strategies of admission control into model based admission control and measurement based admission control,and points out the advantages and disadvantages of the two strategies and the probems need to be solved. |
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| Keywords: | Wireless local area network Voice over internet Protocol Call admission control |
| 本文献已被 CNKI 等数据库收录！ |
