基于用户感知的WLAN网络性能测试方法研究
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摘要
WLAN(无线局域网Wireless Local Area Network)是目前发展非常迅速的网络技术,其主要目的是分流一部分移动通信网络数据业务流量。在大规模的布网下,与之而来的网络规划以及测试优化任务变得任重而道远。传统WLAN网络性能测试缺陷：
1.传统WLAN网络性能测试在空间上存在多条无线信道,受无线空间环境的影响会使结果出现不统一的情况。
2.传统的覆盖测试缺乏用户真实业务流量的统计,没有建立真正的数据传输链路,因此可能会造成测试结果不准确的情况。
3.传统多用户覆盖性能测试缺乏传输速率与吞吐量之间的关系统计。
4.缺乏在不同信噪比下用户吞吐量的变化情况。
5.缺乏多用户在多场景、多业务协同下的性能分析。
因此,本文从WLAN网络性能测试存在的问题出发,以用户感知的角度,提出网络性能端到端的测试方法。论文的主要工作及创新如下：
1.介绍了无线局域网802.11系列协议标准,并对WLAN网络的无线信道环境进行了深入分析,在此基础上提出了无线仿真平台设计,并且搭建了无线仿真测试平台；
2.设计基于用户感知的端到端WLAN测试方法,并找出网络覆盖范围、干扰信噪比、最大支持用户数、Qos应用、稳定性以及吞吐量这几个影响用户感知的因素；
3.通过对WLAN频谱进行研究,得出影响网络性能干扰方面的原因,并对同频以及邻频干扰的信噪比对性能吞吐量影响进行研究,得到满足用户需求的最低网络承载信噪比值；
4.使用VeriWave构建模拟场景测试系统,对不同业务流不同SLA指标要求的真实用户场景进行模拟,进行端到端的测试,在评估实际不同业务WLAN网络的服务质量的基础上,评估网络性能,并能够评估网络在处理不同优先级服务时的处理能力。
通过采用基于用户感知的WLAN网络性能测试方法,能够获得更全面的网络性能整体情况,在应用层面获取用户的使用感知,从而为后续有针对性改善网络的用户满意度提供了大量的数据基础。
WLAN (Wireless Local Area Network) is a technology that has a very rapid development today. Its main purpose is to split part of the mobile communication Network data business flow. In the large-scale of WLAN networking, the task of network planning and optimization test become quite important.
The traditional WLAN network performance testing defects are as follows:
1. The traditional WLAN network performance test in the space has multiple wireless channels, and will affect the test results.
2. The traditional test lack of testing users'traffic statistics under the real data transmission link, therefore may lead to inaccurate results.
3. The lack of traditional multi-user coverage performance test between the throughput statistics.
4. Lack of user throughput under different signal-to-noise ratio.
5. Lack of multi-user in different cooperation and business performance analysis.
Therefore, the main purpose of this paper is to study the WLAN network performance test methods based on the user's perception. The main work and innovation are as follows:
1. Introduction of the wireless local area network (WLAN) protocol standard802.11series and thorough analysis of the WLAN network wireless channel environment. This paper puts forward a design of wireless simulation platform and sets up a wireless simulation test platform;
2. Design the end-to-end WLAN testing system based on the users' perception, which focus on network coverage, the interference signal to noise ratio (SNR), the maximum support users, the Qos application, the stability and throughput factors;
3. Based on WLAN spectrum research, draw the interference factors which influence.the network performance, and get Co-Channel interference and Adjacent Channel interference of signal-to-noise ratio influence throughput performance which satisfied the needs of the user minimum network load signal-to-noise ratio;
4. Use VeriWave to build a simulation scenario testing system. The different business flow and different SLA index requirements of the users simulate the real scene and make end-to-end testing. In the evaluation of the actual different business WLAN network quality service, the network performance evaluation should be able to evaluate network in dealing with different priority service processing ability.
Through the test method of the WLAN network performance based on the users' perception, we can get a more comprehensive network performance, the overall situation in the application level for the use of user perception, so as to improve the subsequent targeted of network and get a data foundation of user satisfaction system.
1.传统WLAN网络性能测试在空间上存在多条无线信道,受无线空间环境的影响会使结果出现不统一的情况。
2.传统的覆盖测试缺乏用户真实业务流量的统计,没有建立真正的数据传输链路,因此可能会造成测试结果不准确的情况。
3.传统多用户覆盖性能测试缺乏传输速率与吞吐量之间的关系统计。
4.缺乏在不同信噪比下用户吞吐量的变化情况。
5.缺乏多用户在多场景、多业务协同下的性能分析。
因此,本文从WLAN网络性能测试存在的问题出发,以用户感知的角度,提出网络性能端到端的测试方法。论文的主要工作及创新如下：
1.介绍了无线局域网802.11系列协议标准,并对WLAN网络的无线信道环境进行了深入分析,在此基础上提出了无线仿真平台设计,并且搭建了无线仿真测试平台；
2.设计基于用户感知的端到端WLAN测试方法,并找出网络覆盖范围、干扰信噪比、最大支持用户数、Qos应用、稳定性以及吞吐量这几个影响用户感知的因素；
3.通过对WLAN频谱进行研究,得出影响网络性能干扰方面的原因,并对同频以及邻频干扰的信噪比对性能吞吐量影响进行研究,得到满足用户需求的最低网络承载信噪比值；
4.使用VeriWave构建模拟场景测试系统,对不同业务流不同SLA指标要求的真实用户场景进行模拟,进行端到端的测试,在评估实际不同业务WLAN网络的服务质量的基础上,评估网络性能,并能够评估网络在处理不同优先级服务时的处理能力。
通过采用基于用户感知的WLAN网络性能测试方法,能够获得更全面的网络性能整体情况,在应用层面获取用户的使用感知,从而为后续有针对性改善网络的用户满意度提供了大量的数据基础。
WLAN (Wireless Local Area Network) is a technology that has a very rapid development today. Its main purpose is to split part of the mobile communication Network data business flow. In the large-scale of WLAN networking, the task of network planning and optimization test become quite important.
The traditional WLAN network performance testing defects are as follows:
1. The traditional WLAN network performance test in the space has multiple wireless channels, and will affect the test results.
2. The traditional test lack of testing users'traffic statistics under the real data transmission link, therefore may lead to inaccurate results.
3. The lack of traditional multi-user coverage performance test between the throughput statistics.
4. Lack of user throughput under different signal-to-noise ratio.
5. Lack of multi-user in different cooperation and business performance analysis.
Therefore, the main purpose of this paper is to study the WLAN network performance test methods based on the user's perception. The main work and innovation are as follows:
1. Introduction of the wireless local area network (WLAN) protocol standard802.11series and thorough analysis of the WLAN network wireless channel environment. This paper puts forward a design of wireless simulation platform and sets up a wireless simulation test platform;
2. Design the end-to-end WLAN testing system based on the users' perception, which focus on network coverage, the interference signal to noise ratio (SNR), the maximum support users, the Qos application, the stability and throughput factors;
3. Based on WLAN spectrum research, draw the interference factors which influence.the network performance, and get Co-Channel interference and Adjacent Channel interference of signal-to-noise ratio influence throughput performance which satisfied the needs of the user minimum network load signal-to-noise ratio;
4. Use VeriWave to build a simulation scenario testing system. The different business flow and different SLA index requirements of the users simulate the real scene and make end-to-end testing. In the evaluation of the actual different business WLAN network quality service, the network performance evaluation should be able to evaluate network in dealing with different priority service processing ability.
Through the test method of the WLAN network performance based on the users' perception, we can get a more comprehensive network performance, the overall situation in the application level for the use of user perception, so as to improve the subsequent targeted of network and get a data foundation of user satisfaction system.
引文
[1]邓来胜.无线局域网中纠错编码的应用[J].科技创新导报.2008.(23)：36.
[2]刘乃安.无线局域网(WLAN)一原理、技术与应用[M].西安：西安电子科技大学出版社.2004.45-47
[3]赵红敏.无线局域网MAC层协议研究[D].中南大学.2009
[4]许慕鸿.WLAN和移动网互通技术分析[J].电信网技术.2012.(5)
[5]潘成,邵天民.烽火科技POE交换机助力WLAN网络建设[J].2012.(8)
[6]董巍.IEEE802.11无线局域网性能表现—跨层模型,系统仿真与实验验证[D].北京邮电大学,2009.
[7]陈云.基于“瘦"AP构建的WLAN系统[D].北京邮电大学.2009.
[8]白继鹏.面向IEEE 802.11n基于联合波束成形的SDMA算法研究[D].西安电子科技大学.2011
[9]刘新欣,王晓东.基于IEEE 802.11无线局域网的VoIP性能分析[J].计算机应用,2010.30(z1)：37-39.
[10]卢石雷.802.11n MAC层性能研究与仿真[D].北京邮电大学.2007
[11]谭凌鸿.基于IEEE802.11的无线Ad Hoc网络的接入性能研究[D].湖南大学.2008
[12]周祥为,蔡维浩,郑国莘等.应用于道路交通的无线局域网性能测试研究[J].交通与计算机,2007.25(3)：124-127.
[13]Doi.Y.Kitakado, Miyata.T. "Realized case of smart antenna in mobile communication systems," Wireless Communication Technology,2003. IEEE Topical Conference on pp.180,15-17 Oct.2003
[14]. Pelechrinis.K, Broustis.I, Krishnamurthy.S, "A Measurement-Driven Anti-Jamming System for 802.11 Networks," Networking, IEEE/ACM Transactions on pp.1208-1222, Aug.2011
[15]汤守领.OFDM系统迭代符号定时和载波同步技术研究[D].燕山大学.2010
[16]李嫒.四川电信的接入网优化建设分析[D].电子科技大学.2004
[17]原昱.石太高铁GSM网络覆盖优化技术的研究与应用[D].北京邮电大学.2011
[18]宁维芳.IEEE802.11DCF协议性能及退避算法改进研究[D].吉林大学.2006
[19]王静.无线局域网的分布式自适应动态信道分配算法的研究[D].上海交通大 学.2008
[20]Youssef.M, Agrawala. A. "Continuous space estimation for WLAN location determination systems," Computer Communications and Networks,2004. ICCCN 2004. Proceedings.13th International Conference on pp.161-166,11-13 Oct.2004
[21]Qingshan Shan, Glover.I.A, Moore.P.J, "Laboratory Assessment of WLAN Performance Degradation in the Presence of Impulsive Noise," Wireless Communications and Mobile Computing Conference,2008. IWCMC 08. International, on pp.859-863,6-8 Aug.2008
[22]Kadlec. J, Kuchta.R, Vrba.R. "Performance Tests of the Dynamics of the Wireless Networks," Networks,2009. ICN'09. Eighth International Conference on pp.112-115,1-6 March 2009
[23]Gharavi.H,Ban.K. "Multihop sensor network design for wide-band communications, " Proceedings of the IEEE, on pp.1221-1234, Aug.2003
[24]Ixia完成对VeriWave的收购[J].电信技术,2011.(8)：52-52.
[25]Primiani.V.M, Moglie.F, Recanatini.R. "On the use of a reverberation chamber to test the performance and the immunity of a WLAN system, "Electromagnetic Compatibility (EMC),2010 IEEE International Symposium on pp.668-673, 25-30 July 2010
[26]王娜,周北琦,刘先会等.无线局域网设备天线性能测试[J].现代电信科技,2012.(5)：32-34.
[27]张艳琼.基于GSM, TD-SCDMA, WLAN三网融合的WLAN网络规划理论研究与技术实现[D].北京邮电大学,2010.
[28]刘俊.WLAN Mesh网络性能测试平台的系统设计[D].西安电子科技大学,2008.
[29]Yunho Jung, Seungpyo Noh, Horigil Yoon. "Implementation of wireless LAN baseband processor based on space-frequency OFDM transmit diversity scheme," Consumer Electronics, IEEE Transactions on pp.393-398, May 2005
[30]Harjula.I, Pinola.J, Prokkola.J.. "Performance of IEEE 802.11 based WLAN devices under various jamming signals, " MILITARY COMMUNICATIONS CONFERENCE,2011-MILCOM 2011, on pp.2129-2135,7-10 Nov.2011
[31]Kbar.G,Mansoor.W, "Testing the Performance of Wireless LAN," Communications,2005 Asia-Pacific Conference on pp.492-496,5-5 Oct. 2005
[32]金建栋.3G&PHS&WLAN三网合一室内无线综合分布系统研究与测试[D].上海交通大学,2009.
[33]SeongSoo Park, Donghahk Lee, Sunggun Kim, JongTae Ihm. "A Performance Evaluation of Handoff Method between WLAN and cdma2000 lx Ev-Do System,"Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies,2006. ICN/ICONS/MCL 2006. International Conference on pp.134,23-29 April 2006
[34]谭展,梁永.基于用户网络访问感知度的WLAN网络应用可视化诊断的研究[J].移动通信,2012.36(8)：87-92.
[35]陈静,柳绪琰,王英龙.基于PDA的无线局域网测试系统的设计与实现[J].计算机应用与软件.2008.(06)
[36]张琦,温蕾.基于用户感知的WLAN网络优化[J].现代电信科技,2012.(9)：67-70.
[37]Peizhong Yi, Iwayemi.A, Chi Zhou."Developing ZigBee Deployment Guideline Under WiFi Interference for Smart Grid Applications," Smart Grid, IEEE Transactions on pp.110-120, March 2011
[38]Dabrowski, Ramzan. "Built-in Loopback Test for IC RF Transceivers," Very Large Scale Integration (VLSI) Systems, IEEE Transactions on pp.933-946, June 2010
[39]Sadiki.T, Paimblanc.P."Modelling New Indoor Propagation Models for WLAN Based on Empirical Results," Computer Modelling and Simulation,2009. UKSIM'09.11th International Conference on pp.585-588,25-27 March 2009
[40]卓明,林海涛,高峰等.多网共建室内分布系统中的WLAN设计原则[J].数据通信,2011.(6)：22-25.
[41]De Francisco.R, Li Huang.Dolmans. G."Coexistence of WBAN and WLAN in Medical Environments," Vehicular Technology Conference Fall (VTC 2009-Fall),2009 IEEE 70th, on pp.1-5,20-23 Sept.2009
[42]翁世泽.基于EPON的无线接入多媒体终端的研究与实现[D].华中科技大学,2008
[43]李靖远.基于嵌入式系统的网络多媒体信息播控系统设计[D].浙江大学,2007.
[44]胡婧.基于传输模式的无线视频差错控制技术研究与实现[D].南京邮电大学,2007.
[45]张海涛.IEEE802.16技术的探讨及其在WLAN中的应用[D].北京邮电大学,2008.
[46]徐靖林.基于IEEE802.11b/g协议标准的WLAN网卡的设计与实现[D].中北大学,2009.
[47]Pelechrinis.K, Broustis.I, Krishnamurthy.S.V. "A Measurement-Driven Anti-Jamming System for 802.11 Networks," Networking, IEEE/ACM Transactions on pp.1208-1222, Aug.2011
[48]刘鲲汉,张隽辉,赵建军等.WLAN校园业务密集区域频率规划研究[J].数据通信,2011.(5)：49-52.
[49]钟嘉维,张文生.WLAN与3G网络互补应用探索[J].广东通信技术,2011.31(2)：31-34.
[50]Yangbo Zheng, Aidong Xu, Yan Song. "Industrial wireless deterministic communication based on WLAN:Design, implementation and analysis, "Communications Technology and Applications,2009. ICCTA'09. IEEE International Conference on pp.274-278,16-18 Oct.2009
[2]刘乃安.无线局域网(WLAN)一原理、技术与应用[M].西安：西安电子科技大学出版社.2004.45-47
[3]赵红敏.无线局域网MAC层协议研究[D].中南大学.2009
[4]许慕鸿.WLAN和移动网互通技术分析[J].电信网技术.2012.(5)
[5]潘成,邵天民.烽火科技POE交换机助力WLAN网络建设[J].2012.(8)
[6]董巍.IEEE802.11无线局域网性能表现—跨层模型,系统仿真与实验验证[D].北京邮电大学,2009.
[7]陈云.基于“瘦"AP构建的WLAN系统[D].北京邮电大学.2009.
[8]白继鹏.面向IEEE 802.11n基于联合波束成形的SDMA算法研究[D].西安电子科技大学.2011
[9]刘新欣,王晓东.基于IEEE 802.11无线局域网的VoIP性能分析[J].计算机应用,2010.30(z1)：37-39.
[10]卢石雷.802.11n MAC层性能研究与仿真[D].北京邮电大学.2007
[11]谭凌鸿.基于IEEE802.11的无线Ad Hoc网络的接入性能研究[D].湖南大学.2008
[12]周祥为,蔡维浩,郑国莘等.应用于道路交通的无线局域网性能测试研究[J].交通与计算机,2007.25(3)：124-127.
[13]Doi.Y.Kitakado, Miyata.T. "Realized case of smart antenna in mobile communication systems," Wireless Communication Technology,2003. IEEE Topical Conference on pp.180,15-17 Oct.2003
[14]. Pelechrinis.K, Broustis.I, Krishnamurthy.S, "A Measurement-Driven Anti-Jamming System for 802.11 Networks," Networking, IEEE/ACM Transactions on pp.1208-1222, Aug.2011
[15]汤守领.OFDM系统迭代符号定时和载波同步技术研究[D].燕山大学.2010
[16]李嫒.四川电信的接入网优化建设分析[D].电子科技大学.2004
[17]原昱.石太高铁GSM网络覆盖优化技术的研究与应用[D].北京邮电大学.2011
[18]宁维芳.IEEE802.11DCF协议性能及退避算法改进研究[D].吉林大学.2006
[19]王静.无线局域网的分布式自适应动态信道分配算法的研究[D].上海交通大 学.2008
[20]Youssef.M, Agrawala. A. "Continuous space estimation for WLAN location determination systems," Computer Communications and Networks,2004. ICCCN 2004. Proceedings.13th International Conference on pp.161-166,11-13 Oct.2004
[21]Qingshan Shan, Glover.I.A, Moore.P.J, "Laboratory Assessment of WLAN Performance Degradation in the Presence of Impulsive Noise," Wireless Communications and Mobile Computing Conference,2008. IWCMC 08. International, on pp.859-863,6-8 Aug.2008
[22]Kadlec. J, Kuchta.R, Vrba.R. "Performance Tests of the Dynamics of the Wireless Networks," Networks,2009. ICN'09. Eighth International Conference on pp.112-115,1-6 March 2009
[23]Gharavi.H,Ban.K. "Multihop sensor network design for wide-band communications, " Proceedings of the IEEE, on pp.1221-1234, Aug.2003
[24]Ixia完成对VeriWave的收购[J].电信技术,2011.(8)：52-52.
[25]Primiani.V.M, Moglie.F, Recanatini.R. "On the use of a reverberation chamber to test the performance and the immunity of a WLAN system, "Electromagnetic Compatibility (EMC),2010 IEEE International Symposium on pp.668-673, 25-30 July 2010
[26]王娜,周北琦,刘先会等.无线局域网设备天线性能测试[J].现代电信科技,2012.(5)：32-34.
[27]张艳琼.基于GSM, TD-SCDMA, WLAN三网融合的WLAN网络规划理论研究与技术实现[D].北京邮电大学,2010.
[28]刘俊.WLAN Mesh网络性能测试平台的系统设计[D].西安电子科技大学,2008.
[29]Yunho Jung, Seungpyo Noh, Horigil Yoon. "Implementation of wireless LAN baseband processor based on space-frequency OFDM transmit diversity scheme," Consumer Electronics, IEEE Transactions on pp.393-398, May 2005
[30]Harjula.I, Pinola.J, Prokkola.J.. "Performance of IEEE 802.11 based WLAN devices under various jamming signals, " MILITARY COMMUNICATIONS CONFERENCE,2011-MILCOM 2011, on pp.2129-2135,7-10 Nov.2011
[31]Kbar.G,Mansoor.W, "Testing the Performance of Wireless LAN," Communications,2005 Asia-Pacific Conference on pp.492-496,5-5 Oct. 2005
[32]金建栋.3G&PHS&WLAN三网合一室内无线综合分布系统研究与测试[D].上海交通大学,2009.
[33]SeongSoo Park, Donghahk Lee, Sunggun Kim, JongTae Ihm. "A Performance Evaluation of Handoff Method between WLAN and cdma2000 lx Ev-Do System,"Networking, International Conference on Systems and International Conference on Mobile Communications and Learning Technologies,2006. ICN/ICONS/MCL 2006. International Conference on pp.134,23-29 April 2006
[34]谭展,梁永.基于用户网络访问感知度的WLAN网络应用可视化诊断的研究[J].移动通信,2012.36(8)：87-92.
[35]陈静,柳绪琰,王英龙.基于PDA的无线局域网测试系统的设计与实现[J].计算机应用与软件.2008.(06)
[36]张琦,温蕾.基于用户感知的WLAN网络优化[J].现代电信科技,2012.(9)：67-70.
[37]Peizhong Yi, Iwayemi.A, Chi Zhou."Developing ZigBee Deployment Guideline Under WiFi Interference for Smart Grid Applications," Smart Grid, IEEE Transactions on pp.110-120, March 2011
[38]Dabrowski, Ramzan. "Built-in Loopback Test for IC RF Transceivers," Very Large Scale Integration (VLSI) Systems, IEEE Transactions on pp.933-946, June 2010
[39]Sadiki.T, Paimblanc.P."Modelling New Indoor Propagation Models for WLAN Based on Empirical Results," Computer Modelling and Simulation,2009. UKSIM'09.11th International Conference on pp.585-588,25-27 March 2009
[40]卓明,林海涛,高峰等.多网共建室内分布系统中的WLAN设计原则[J].数据通信,2011.(6)：22-25.
[41]De Francisco.R, Li Huang.Dolmans. G."Coexistence of WBAN and WLAN in Medical Environments," Vehicular Technology Conference Fall (VTC 2009-Fall),2009 IEEE 70th, on pp.1-5,20-23 Sept.2009
[42]翁世泽.基于EPON的无线接入多媒体终端的研究与实现[D].华中科技大学,2008
[43]李靖远.基于嵌入式系统的网络多媒体信息播控系统设计[D].浙江大学,2007.
[44]胡婧.基于传输模式的无线视频差错控制技术研究与实现[D].南京邮电大学,2007.
[45]张海涛.IEEE802.16技术的探讨及其在WLAN中的应用[D].北京邮电大学,2008.
[46]徐靖林.基于IEEE802.11b/g协议标准的WLAN网卡的设计与实现[D].中北大学,2009.
[47]Pelechrinis.K, Broustis.I, Krishnamurthy.S.V. "A Measurement-Driven Anti-Jamming System for 802.11 Networks," Networking, IEEE/ACM Transactions on pp.1208-1222, Aug.2011
[48]刘鲲汉,张隽辉,赵建军等.WLAN校园业务密集区域频率规划研究[J].数据通信,2011.(5)：49-52.
[49]钟嘉维,张文生.WLAN与3G网络互补应用探索[J].广东通信技术,2011.31(2)：31-34.
[50]Yangbo Zheng, Aidong Xu, Yan Song. "Industrial wireless deterministic communication based on WLAN:Design, implementation and analysis, "Communications Technology and Applications,2009. ICCTA'09. IEEE International Conference on pp.274-278,16-18 Oct.2009