复杂场景下WLAN干扰分析及优化研究
发布时间：2018-07-23 21:06
【摘要】：随着电信运营商的重组和4G牌照的发放,传统移动通信已向大数据业务进行转变。电信运营商纷纷转变战略方向,将自身定位由移动通信专家角色向移动信息专家进行转变。未来通信发展趋势为大数据、大流量、高带宽的数据业务占主导地位。由于传统移动通信的制约、资费套餐制约,各大运营商纷纷加大WLAN网络的布建和运营。利用WLAN的移动性、高速率、IP化组网结构等特点来弥补数据业务的不足。WLAN可做为运营商拓展宽带接入市场的切入点,最终实现全业务运营。随WLAN网络的大量建设及商用,网络用户数量大规模增长。但由于WLAN自身特点所局限,在实际使用中WLAN在特定情况下的缺点逐渐暴露出来:1、用户侧信号强度不稳定2、用户使用中信号频繁连接或频繁中断十分严重3、数据流量下载缓慢,时延较大4、用户感知较差此类现象主要由于干扰及WLAN参数设置不合理造成。通过对WLAN协议和无线通信研究,结合目前运营的WLAN网络中存在的各种问题,确定同频干扰和邻频干扰的发生机制和对网络的影响。通过对各种干扰环境的系统重现、网络环境摸拟、测试平台搭建,实现了对同频干扰和邻频干扰情况的量化分析。结合测试结果和各项网络规范,总结出可以适用于一线无线网络优化和指标调整的数据依据基础,为各无线场景制定量化的优化标准。在理论及数据的支撑下,完成特定高校场景的网络优化工作,为其他场景网络优化提供参考支撑。
[Abstract]:With the reorganization of telecom operators and the issuance of 4G licenses, traditional mobile communications have been transformed to big data services. Telecom operators have changed their strategic direction from the role of mobile communication experts to mobile information experts. The future communication development trend is big data, large traffic, high bandwidth data service dominates. Due to the restriction of traditional mobile communication and the restriction of tariff package, the major operators increase the construction and operation of WLAN network one after another. Taking advantage of the mobility of WLAN and the high speed IP network structure to make up for the shortage of data service. WLANs can be used as the breakthrough point for operators to expand the broadband access market and finally realize the whole service operation. With the large number of WLAN network construction and commercial, the number of network users is growing. However, due to the limitation of WLAN's own characteristics, the disadvantages of WLAN in practical use are gradually exposed: 1, the signal intensity on the user side is unstable by 2, the frequent connection or frequent interruption of the signal in the user's use is very serious, and the download of data flow is slow. This phenomenon is mainly caused by interference and unreasonable setting of WLAN parameters. Through the research of WLAN protocol and wireless communication, combined with the problems existing in the current WLAN network, the mechanism of co-frequency interference and adjacent frequency interference and its influence on the network are determined. Through the reconstruction of various jamming environments, the simulation of network environment and the construction of test platform, the quantitative analysis of co-frequency interference and adjacent frequency interference is realized. Combined with the test results and the network specifications, the paper summarizes the data basis for the optimization and index adjustment of the wireless network, and sets up the quantitative optimization standards for each wireless scene. Under the support of theory and data, the network optimization work of the specific university scene is completed, which provides reference support for the network optimization of other scenarios.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN925.93
本文编号：2140647
[Abstract]:With the reorganization of telecom operators and the issuance of 4G licenses, traditional mobile communications have been transformed to big data services. Telecom operators have changed their strategic direction from the role of mobile communication experts to mobile information experts. The future communication development trend is big data, large traffic, high bandwidth data service dominates. Due to the restriction of traditional mobile communication and the restriction of tariff package, the major operators increase the construction and operation of WLAN network one after another. Taking advantage of the mobility of WLAN and the high speed IP network structure to make up for the shortage of data service. WLANs can be used as the breakthrough point for operators to expand the broadband access market and finally realize the whole service operation. With the large number of WLAN network construction and commercial, the number of network users is growing. However, due to the limitation of WLAN's own characteristics, the disadvantages of WLAN in practical use are gradually exposed: 1, the signal intensity on the user side is unstable by 2, the frequent connection or frequent interruption of the signal in the user's use is very serious, and the download of data flow is slow. This phenomenon is mainly caused by interference and unreasonable setting of WLAN parameters. Through the research of WLAN protocol and wireless communication, combined with the problems existing in the current WLAN network, the mechanism of co-frequency interference and adjacent frequency interference and its influence on the network are determined. Through the reconstruction of various jamming environments, the simulation of network environment and the construction of test platform, the quantitative analysis of co-frequency interference and adjacent frequency interference is realized. Combined with the test results and the network specifications, the paper summarizes the data basis for the optimization and index adjustment of the wireless network, and sets up the quantitative optimization standards for each wireless scene. Under the support of theory and data, the network optimization work of the specific university scene is completed, which provides reference support for the network optimization of other scenarios.
【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN925.93
【参考文献】
相关期刊论文 前8条
1 庞展;阙捚淑;罗春燕;黄帮明;;2.4GHz和5GHz WLAN干扰对比分析[J];电视技术;2014年09期
2 陈伟峰;谭展;;浅谈WLAN网络优化[J];移动通信;2013年18期
3 张恩宝;;无线宽带技术及其行业应用研究[J];上海电力;2009年05期
4 程广;;无线技术应用新亮点[J];中国无线电;2009年08期
5 谭彦;;运营商WLAN优化案例分析[J];电信技术;2009年07期
6 赵彩霞;;浅议无线通信技术的发展及应用[J];科技信息;2009年20期
7 陈莉莉;;宽带无线接入技术比较以及应用分析[J];科技资讯;2009年10期
8 刘丹谱;郝建军;乐光新;;WiMAX宽带无线接入技术及其应用[J];中兴通讯技术;2008年01期
相关硕士学位论文 前2条
1 王振亚;WLAN优化系统的设计与实现[D];华中师范大学;2014年
2 王炼红;WLAN信道特性分析及信息传输技术方案优化的研究[D];湖南大学;2002年
，本文编号：2140647
本文链接：https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/2140647.html
