整合Wi-Fi和WiMAX之无线网

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整合Wi-Fi和WiMAX之无线网管系统
周德陈建国郑师尧建毅
国中央大学资讯工程研究所
E-mail: cld@csie.ncu.edu.tw
本研究感谢政院国家科学委员会之补助,计画编号
NSC93-2219-E-260-006.
摘要
对於新兴的 WiMAX 技术,除拥有高速的
传输频宽和广大的基地台涵盖范围提供取代目
前传统有线固网「最后一哩」的解决方案,势必对
目前无线网架构造成一定程的影响.Shalini 等
人表示[1] WiMAX 将会取代目前的 3G 和
Wi-Fi 无线网技术,而是相互并存的.因此针对
并存的无线网 ,提供善管的机制,让网管人
员可以方地监控和管网设备.所以本文提
出一个适用於 Wi-Fi 和 WiMAX 的无线网管
系统 (Wi-Fi and WiMAX Integrated Wireless
Network Management System,简称为
WWWNMS),并且实作此系统於国中央大学及国
暨南大学 WiMAX 网域中.提供网管者在
Wi-Fi 及 WiMAX 整合的环境下,方的监测和管
无线网设备, 可以侦测私接的 Wi-Fi 基地
台.此外,运用现有的网资源,只要管者的网
管伺服器能上网 , 管在室内还是室外,当使
用者存取无线网时, 可知道使用者的位置.
关键词:Wi-Fi,WiMAX,网管 ,无线网 .
Abstract
For emerging WiMAX technology, it has high
speed transmission bandwidth advantage, and it also
supply last-mile a solution for wired network by
large-scale cover range. WiMAX will influence
present internet architecture. Shalini and many experts
indicate that WiMAX will not replace 3G and Wi-Fi
wireless technology [1]. They will co-exit. For that
reason, it sure has a suitable mechanism for managing
heterogeneous wireless network. Let network manager
can easily monitor and correctly manage network
devices. In this paper, we purpose a wireless network
management system for Wi-Fi and WiMAX (Wi-Fi
and WiMAX Integrated Wireless Network
Management System, a name for its abbreviated
WWWNMS). The system is implementing in the
domain of National Center University and National
Chi Na University. In Wi-Fi and WiMAX integrated
environment, WWWNMS supports network manager
a convenient way to monitor and manage network
devices. It also can detect private Wi-Fi access point.
Besides that, by using present network resources when
customer connects to wireless network, it can locate
customer's position. No matter where customer is
indoor or outdoor.
Keywords: Wi-Fi, WiMAX, network management,
wireless
1. 绪
随著时代的进步,无线网的技术也日新月 ,
而当无线网设备故障或是有正常的产生
时,将会影响到网服务品质,甚至停止网服
务,因此网管已成为一个相当值得探讨的议
题.在无线网的环境下,使用者具有时间和移动
相依性而且无线网装置开关会非常频繁,也时
会有讯号干扰等问题产生,这些会让无线网管
趋於复杂.Shalini 等人 [1] 认为在未的无
线网应该具有下特性,首先是无所在的服务
范围,即是使用者无到麼地方或是在麼时
间是可以存取网的.最好的线品质,当使用
者要存取无线网时,会自动的选取最好的无线网
线品质.永远保持线态,只要使用者的移
动装置是开启的,就以最少的存取延迟上无线
网 .
IEEE 802.16 Working Group on Broadband
Wireless Access发展大会区域无线网 ,提供高
频宽 (70Mbps) 及远距 (40km) 的无线存取,如
此的特性使得 WiMAX 成为在家用户或是中小
企业的最后一哩 (last-mile) 解决方案.
目前 WiMAX 将会取代 3G 和 Wi-Fi 无线
网技术,而是相互并存的, 用 WiMAX 高速
的传输频宽和广大的基地台涵盖范围接大
会型区域无线网 ,再接已大配罝在室内的
Wi-Fi 区域无线网的 Wi-Fi Acess Point 达到
高速频宽传输及低建置成本的网环境.在无线网
的环境下,很难去得知使用者的位置.以目前
,在 IEEE 802.11 WLAN 的架构中,并没有一个
标准的方法得知使用者的位置[2], 用是在
WiMAX 的架构.而且传统的有线网管系统目
前并能知道 WLAN 底下使用者的相关资讯.
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[1] S. Periyalwar, B. Hashem, G. Senarath, K. Au and
R. Matyas, Future mobile broadband wireless
networks: a radio resource management
perspective, Wireless Communications and
Mobile Computing, vol. 3, Issue 7, pp.803-816,
November 2003.
8 a [2] C. Yen-Cheng, C. Yao-Jung, S. Cheung-Wo,
Enabling location-based services in wireless LAN
hotspots, International Journal of Network
Management, Vol.15, Issue 3, pp.163-175,
May/June 2005
[3] C. Eklund, R. B. Marks, K. L. Standwood and S.
Wang, IEEE Standard 802.16: A Technical
Overview of the WirelessManTM Air Interface for
Broadband Wireless Access, IEEE
Communications Magazine, pp.98-107, Jun. 2002
[4] R. B. Marks, K. Stanwood and D.n Chang, IEEE
Standard for Local and Metropolitan Area
Networks Part 16: Air Interface for Fixed
Broadband Wireless Access Systems, IEEE
Standard, Oct. 2004
[5] WiMAX Forum, http://www.wimaxforum.org
9 hl [6] G. H. Bong, P. J. Hyuk, P. Byeong-hee, Y. S. Wha,
A network element management system for
managing H.323 gatekeepers, Proceedings of The
6th International Conference on Advanced
Communications Technology, Phoenix Park, Korea,
vol.2, pp.782-785, Feb. 2004
[7] N. Agrawal, On the design of element
management system for node Bs in a 3G wireless
network, Proceedings of 2002 IEEE International
Conference on Personal Wireless Communications,
New Delhi, INDIA, pp.51-55, Dec. 2002.
[8] S.-J. Choi, M.-S. Baik and C.-S. Hwang,
"Location Management & Message Delivery
Protocol in Multi-region Mobile Agent Computing
Environment," Proceeding of 24th International
Conference on Distributed Computing Systems,
Tokyo, Japan, pp. 476-483, Mar.2004.
[9] R. Chen, S. Yuan, and J. Zhu, "A Dynamic
Location Management Method of Personal
Communication System," Proceeding of E-Tech
2004, pp. 1-9, 31 July 2004.
[10] K. Lee, H. W. Lee, S. Jha and N. Bulusu,
"Adaptive, Distributed Location Management in
Mobile, Wireless Networks," Proceeding of 2004
IEEE International Conference on
Communications, Paris, France, pp. 4077-4081,
Jun.2004
[11] Y.-H. Zhu, G.-G. Zhou, D.-H. Shi and J. Gao, "A
Location Management Scheme With Layered Cells
Within Location Areas," Proceedings of 2004
IEEE Wireless Communications and Networking
Conference, Atlanta, USA, vol.1, pp. 255-259, Mar.
2004.
[12] S.-Y. Kim and W. W. Smari, "Reducing
Location Management Costs in Hierarchical-based
Model of Mobile and Wireless Computing
Systems," Proceedings of 2003 IEEE International
Conference on Information Reuse and Integration,
Las Vegas, USA, pp. 428-435, Oct.2003.

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