基于WIMAX技术的校园网络和安全部署的设计与实现
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摘要
目前,国内教育领域从高校到中小学都开始进行了校园信息化的建设。校园网络目前用到最多的就是有线局域网和802.11b无线局域网技术(WiFi)。有线局域网布线成本高、安装复杂,并且不能移动使用,限制了使用的范围。WiFi无线局域网技术是校园无线网络当今发展比较成熟的技术,但WiFI技术受协议体系等方面很大的制约,只能在300公尺以内的小范围内使用,并且网络传输很容易被监听,在安全上存在很大的隐患。而目前正在普及的微波存取全球互通技术(WiMAX)完全能够解决这些问题,满足校园网发展需求和安全技术的无线通信机制。
本文分析和研究了WiMAX技术,包括从物理层(PHY)到媒质访问控制层(MAC)以及安全子层的各种技术;分析了正交频分复用技术(OFDM);搜集和整理了校园无线网络的最新需求；分析了校园网与普通电信网的需求差异；重点对校园网现有的各种网络安全技术进行了深入研究；根据WiMAX的技术特点和校园网络的需求,设计了校园无线网络,并依据设计方案在某校园进行了实地的网络和安全部署,并进行了实地的实验和测试。测试和实际结果表明,WiMAX校园网络和安全部署方案可以有效满足校园网络的各种需求,同时相对于其它技术可以大幅提高网络的容量、性能、灵活性和移动性。可以极大地推动和促进校园的信息化程度。
本文按照工程设计的步骤,从可行性分析、需求分析到组网设计和实际部署测试,完成了珠海某WiMAX校园网的初步建设,通过试验和测试,充分验证了校园无线网络中WiMAX的优势。证明了运用WiMAX技术的校园网络具有布网灵活,配置方便,覆盖远,带宽大,上传速率高,移动性高,可以越区切换等多重优点。WiMAX技术完全适应校园网的多种场景需求,满足各种不同的应用请求。运用WiMAX技术搭建的校园网完全可以适应师生对网络更高的追求。本文的工作为以后校园无线网络大规模运用WiMAX技术提供了理论和测试依据。
目前,珠海WiMAX校园网组网终端数目还不是很多,随着WiMAX技术的进一步发展,WiMAX网络设备终端的费用进一步降低以后,WiMAX校园网应用前景将更加广阔。
With the advancement of the campus informationization from primary school to university, campus informationization which based on campus network have developed the communncation between teachers and students, improved the Efficiency of Teaching, scientific research, and management. The currently used in campus network is cable LAN and Wireless Fidelity(WiFi) wireless LAN technology. But, The high cost of wired LAN cabling and installation complexity, and can not be moved to use, are limiting the scope of use.WiFi is one of mature technology for the development of the campus wireless network nowadays, but WiFI can be used in only 300 meters, and easily be in a lot of security problems. The most popular wireless communication mechanism which includes the latest new technololy and network security technology is Worldwide Interoperability for Microwave Access (WiMAX).
The paper studies a variety of WiMAX technology, including the technology from physical layer(PHY) to Media Access Control (MAC) layer and the various sub-layer security technology.The paper studies Orthogonal Frequency Division Multiplexing (OFDM).The paper puts the latest demand of a campus wireless network together,and gives the application design for the WiMAX wireless network on campus.At last, testing design on a campus and testing report are proposed.The testing and practical effect show that the design based on WiMAX can be deployed effectively to meet the needs of the campus network,and increase net capacity, performance, safety,flexibility and mobility relative to all other technology at the same time.It greatly promotes the degree of the campus informationization.
According to the engineering design step, from the feasibility analysis, the demand analyzes to the network design and the actual deployment test, the paper has completed one WiMAX campus network construction in Zhuhai.And it confirmed the superiority of WiMAX wireless network in campus.The network based on WiMAX spreads freely, covers far.And the band width is big, the speed is high, the mobility is high. The WiMAX technology completely adapts the many kinds of scene demand and each kind of application request in campus network. The paper provides the theory and the test result for the campus wireless network structure.
But the high price of depoter and the terminal base on WiMAX in the present make the the terminal number for test is not enough, But I believe, with the times go on, WiMAX technology will go further, and the WiMAX network equipment terminal expense will reduces rapidly.And then,the WiMAX technology may widely apply in each net construction of campus.
本文分析和研究了WiMAX技术,包括从物理层(PHY)到媒质访问控制层(MAC)以及安全子层的各种技术;分析了正交频分复用技术(OFDM);搜集和整理了校园无线网络的最新需求；分析了校园网与普通电信网的需求差异；重点对校园网现有的各种网络安全技术进行了深入研究；根据WiMAX的技术特点和校园网络的需求,设计了校园无线网络,并依据设计方案在某校园进行了实地的网络和安全部署,并进行了实地的实验和测试。测试和实际结果表明,WiMAX校园网络和安全部署方案可以有效满足校园网络的各种需求,同时相对于其它技术可以大幅提高网络的容量、性能、灵活性和移动性。可以极大地推动和促进校园的信息化程度。
本文按照工程设计的步骤,从可行性分析、需求分析到组网设计和实际部署测试,完成了珠海某WiMAX校园网的初步建设,通过试验和测试,充分验证了校园无线网络中WiMAX的优势。证明了运用WiMAX技术的校园网络具有布网灵活,配置方便,覆盖远,带宽大,上传速率高,移动性高,可以越区切换等多重优点。WiMAX技术完全适应校园网的多种场景需求,满足各种不同的应用请求。运用WiMAX技术搭建的校园网完全可以适应师生对网络更高的追求。本文的工作为以后校园无线网络大规模运用WiMAX技术提供了理论和测试依据。
目前,珠海WiMAX校园网组网终端数目还不是很多,随着WiMAX技术的进一步发展,WiMAX网络设备终端的费用进一步降低以后,WiMAX校园网应用前景将更加广阔。
With the advancement of the campus informationization from primary school to university, campus informationization which based on campus network have developed the communncation between teachers and students, improved the Efficiency of Teaching, scientific research, and management. The currently used in campus network is cable LAN and Wireless Fidelity(WiFi) wireless LAN technology. But, The high cost of wired LAN cabling and installation complexity, and can not be moved to use, are limiting the scope of use.WiFi is one of mature technology for the development of the campus wireless network nowadays, but WiFI can be used in only 300 meters, and easily be in a lot of security problems. The most popular wireless communication mechanism which includes the latest new technololy and network security technology is Worldwide Interoperability for Microwave Access (WiMAX).
The paper studies a variety of WiMAX technology, including the technology from physical layer(PHY) to Media Access Control (MAC) layer and the various sub-layer security technology.The paper studies Orthogonal Frequency Division Multiplexing (OFDM).The paper puts the latest demand of a campus wireless network together,and gives the application design for the WiMAX wireless network on campus.At last, testing design on a campus and testing report are proposed.The testing and practical effect show that the design based on WiMAX can be deployed effectively to meet the needs of the campus network,and increase net capacity, performance, safety,flexibility and mobility relative to all other technology at the same time.It greatly promotes the degree of the campus informationization.
According to the engineering design step, from the feasibility analysis, the demand analyzes to the network design and the actual deployment test, the paper has completed one WiMAX campus network construction in Zhuhai.And it confirmed the superiority of WiMAX wireless network in campus.The network based on WiMAX spreads freely, covers far.And the band width is big, the speed is high, the mobility is high. The WiMAX technology completely adapts the many kinds of scene demand and each kind of application request in campus network. The paper provides the theory and the test result for the campus wireless network structure.
But the high price of depoter and the terminal base on WiMAX in the present make the the terminal number for test is not enough, But I believe, with the times go on, WiMAX technology will go further, and the WiMAX network equipment terminal expense will reduces rapidly.And then,the WiMAX technology may widely apply in each net construction of campus.
引文
[1]董晓鲁[等]编著.《WiMAX技术、标准与应用》.第1版.北京：人民邮电出版社,2007.p128-240
[2]刘波,安娜,黄旭林编著.《iMAX技术与应用详解》.北京：人民邮电出版社,2007
[3]Pareek, Deepak.著.《The business of WiMAX》. Chichester, England;:John Wiley,,c2006.
[4]马宏生.《WiMAX将成最好的4G技术》.http://www.anywlan.com,2009-02-18
[5]Labiod, Houda.-Afifi, Hossam.-De Santis, C.著.《Wi-Fi, Bluetooth, Zigbee and WiMAX》. H. Labiod, H. Afifi, C. DeSantis. Dordrecht;:Springer, 2007.
[6]凌力编著.《网络协议与网络安全》.北京：清华大学出版社,2007
[7]郎为民；刘波编著.《WiMAX技术原理与应用》.北京：机械工业出版社.2008.
[8]陈洁.《WiMAX技术的发展与展望》.《移动通信》.2007年第31卷第07期
[9]思科系统(中国)网络技术有限公司编著.《下一代网络安全》.北京邮电大学出版社.2006
[10]张合权；张奎.《Wi-Fi与WiMAX技术比较及其应用前景分析》.《科技信息(学术版)》.2008年第09期
[11]张莉.《WiMAX的标准与研究进展》.《中国多媒体通信》.2007(5).p8-10
[12]曹恺：罗进文.《无线宽带WiMAX关键技术研究》.《黑龙江科技信息》.2008(1).p73
[13]杨威主编.《宽带接入技术与实践》.北京：人民邮电出版社.2008.p73
[14]Nuaymi, Loutfi著.《WiMAX::technology for broadband wireless access)). Chichester, England;:John Wiley, c2007. p43-68
[15]胡乐明等.《WiMAX技术发展与应用分析》.http://www.cqvip.com/.2005-10
[16]胡宇；曹磊.《WiMAX体系结构与性能》.《广东通信技术》.2005(3).
[17]王茜；王岩. 《无线校园网WiMAX技术及其应用》.《电信科学》.2004年8月
[18]唐雄燕主编;李建宇[等]编著.《宽带无线接入技术及应用——iMAX与WiFi》.北京：电子工业出版社.2006
[19]彭木根,王文博等编著.《下一代宽带无线通信系统——OFDM与WiMAX》.北京机械工业出版社,2007
[20]王强；黄毅.《影响WiMAX组网的关键因素研究》.《现代传输》.2007(6).p77-80
[21]王景蕊;罗宏.《WiMAX无线网络组网方案》.《现代电信科技》.2007(8).P56-59
[22]WiMAX FORUM.《移动WiMAX支持个人宽带业务对频谱的需求分析》.《WiMAX技术标准白皮书》.http://www.WiMAX.com.cn,2008-02-29
[23]张迎新；赵新胜.《WiMAX系统中功率分配与AMC技术的研究》.http://www.cnki.net
[24]邓中亮；黄嘉铭.《移动WiMAX参数指标及射频测试浅析》.《无线电技术与信息》.2007(4).p73
[25]曾春亮[等]编著.《WiMAX/802.16原理与应用》.北京：机械工业出版社,2007
[26]马红兵.《宽带无线接入系统WiMAX的应用与部署》.《邮电设计技术》,2006(11).p1-6
[27]张智江、李正茂、王兵、张云勇编著.《宽带无线接入系统WiMAX及工程建设》.北京：人民邮电出版社,2007
[2]刘波,安娜,黄旭林编著.《iMAX技术与应用详解》.北京：人民邮电出版社,2007
[3]Pareek, Deepak.著.《The business of WiMAX》. Chichester, England;:John Wiley,,c2006.
[4]马宏生.《WiMAX将成最好的4G技术》.http://www.anywlan.com,2009-02-18
[5]Labiod, Houda.-Afifi, Hossam.-De Santis, C.著.《Wi-Fi, Bluetooth, Zigbee and WiMAX》. H. Labiod, H. Afifi, C. DeSantis. Dordrecht;:Springer, 2007.
[6]凌力编著.《网络协议与网络安全》.北京：清华大学出版社,2007
[7]郎为民；刘波编著.《WiMAX技术原理与应用》.北京：机械工业出版社.2008.
[8]陈洁.《WiMAX技术的发展与展望》.《移动通信》.2007年第31卷第07期
[9]思科系统(中国)网络技术有限公司编著.《下一代网络安全》.北京邮电大学出版社.2006
[10]张合权；张奎.《Wi-Fi与WiMAX技术比较及其应用前景分析》.《科技信息(学术版)》.2008年第09期
[11]张莉.《WiMAX的标准与研究进展》.《中国多媒体通信》.2007(5).p8-10
[12]曹恺：罗进文.《无线宽带WiMAX关键技术研究》.《黑龙江科技信息》.2008(1).p73
[13]杨威主编.《宽带接入技术与实践》.北京：人民邮电出版社.2008.p73
[14]Nuaymi, Loutfi著.《WiMAX::technology for broadband wireless access)). Chichester, England;:John Wiley, c2007. p43-68
[15]胡乐明等.《WiMAX技术发展与应用分析》.http://www.cqvip.com/.2005-10
[16]胡宇；曹磊.《WiMAX体系结构与性能》.《广东通信技术》.2005(3).
[17]王茜；王岩. 《无线校园网WiMAX技术及其应用》.《电信科学》.2004年8月
[18]唐雄燕主编;李建宇[等]编著.《宽带无线接入技术及应用——iMAX与WiFi》.北京：电子工业出版社.2006
[19]彭木根,王文博等编著.《下一代宽带无线通信系统——OFDM与WiMAX》.北京机械工业出版社,2007
[20]王强；黄毅.《影响WiMAX组网的关键因素研究》.《现代传输》.2007(6).p77-80
[21]王景蕊;罗宏.《WiMAX无线网络组网方案》.《现代电信科技》.2007(8).P56-59
[22]WiMAX FORUM.《移动WiMAX支持个人宽带业务对频谱的需求分析》.《WiMAX技术标准白皮书》.http://www.WiMAX.com.cn,2008-02-29
[23]张迎新；赵新胜.《WiMAX系统中功率分配与AMC技术的研究》.http://www.cnki.net
[24]邓中亮；黄嘉铭.《移动WiMAX参数指标及射频测试浅析》.《无线电技术与信息》.2007(4).p73
[25]曾春亮[等]编著.《WiMAX/802.16原理与应用》.北京：机械工业出版社,2007
[26]马红兵.《宽带无线接入系统WiMAX的应用与部署》.《邮电设计技术》,2006(11).p1-6
[27]张智江、李正茂、王兵、张云勇编著.《宽带无线接入系统WiMAX及工程建设》.北京：人民邮电出版社,2007