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介绍了GB 15629.11系列标准中提出的WPI安全机制,分析了WAI无线局域网鉴别基础结构以及WPI无线局域网保密基础结构.在此基础上对WAPI机制进行了安全性分析,指出其在安全性方面的明显优势. 相似文献
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无线局域网安全性的改进 总被引:2,自引:0,他引:2
本文对无线局域网安全性的发展做了简单的回顾,重点的介绍了当前在无线局域网安全方面主要采用的技术方法,并探讨了无线局域网安全性今后的发展方向。 相似文献
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随着我国信息技术的发展,无线局域网被广泛应用在各个行业之中.无线局域网具有开放性、易扩展性的特点,对网络的安全性要求比较高.与此同时,无线局域网环境下的通信安全问题也逐渐受到人们的关注.本文重点分析了如何解决目前无线局域网中存在的通信安全问题. 相似文献
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在简要介绍无线局域网发展历史和现状基础上,针对现代无线局域网通信带宽大、使用范围广以及架设简单的特点,结合其在外军下一代战术互联网中的应用,分析了无线局域网增强安全性、抗毁性以及扩展传输距离可采用的手段。提出了使用无线局域网作为低成本无线视距宽带通信手段,在未来宽带战术互联网组网通信的应用方式;并分析了典型应用场景,预测了无线局域网在未来宽带战术互联网中的应用前景。 相似文献
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基于IEEE802.11无线局域网的安全性研究 总被引:1,自引:0,他引:1
随着无线局域网的不断发展,网络安全问题日益突出。这里根据无线局域网信道的特点,首先介绍了无线局域网的安全需求,其次,描述了基于IEEE802.11无线局域网标准的有线等效保密(WEP)协议原理,并对WEP协议存在的安全漏洞及其相应的攻击进行了分析,最后,针对这些安全漏洞和攻击提出了增强无线局域网安全性的改进方案。 相似文献
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在教育教学领域中应用无线局域网,不仅可以使得教学理念和方式变得更加的多样化、更具灵活性,还能够有效的提升教育教学水平,所以,现阶段我国大部分学校都使用了无线局域网。无线局域网的使用虽然为教学工作的展开提供了极大的便利,但其本身存在的安全性问题也逐渐暴漏了出来。对此,本文以校园中的无线局域网为立足点,通过对其当前应用过程中安全现状的分析,从而找出无线局域网在应用过程中的安全问题。 相似文献
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文中首先介绍现存的无线网络技术,计论适用佼园网环境的无线组网方法。然后给出校园内局域网间、校园网间及校园网与CERNET地区网络中心之间的无线互连实例。最后介绍移动计算网络的概念,指出今后校园网中移动计算网络的实现方法。 相似文献
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无线局域网中的信道要比有线局域网信道复杂的多,运载其上的流量研究成为评估和了解无线局域网行为模式的关键。比较了有线和无线局域网在体系结构和协议机制上的差异,进而分析了由于这种差异所导致的IP层数据包流量和MAC层帧数据流量不同之处,提出了无线局域网流量研究中存在的问题,探讨了无线局域网帧数据流量的研究内容和方向。 相似文献
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Large-scale wireless LAN design 总被引:7,自引:0,他引:7
The design of a large-scale wireless LAN poses a number of interesting questions. Building the Wireless Andrew network at Carnegie Mellon University has given us the opportunity to deal with these questions. This article describes the approaches we have developed for the design of similar networks. A large-scale wireless LAN must be designed so that all of the target space has radio coverage (i.e., there are no coverage gaps). It must also be designed so that its capacity is adequate to carry the expected load. These requirements generally can be met by using the proper combination of access point locations, frequency assignments, and receiver threshold settings 相似文献
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无线局域网络是在有线局域网的基础上发展而来的,因具有许多优势而被广泛应用。文章设计了基于党校的无线局域网全覆盖方案,分析了无线局域接入楼宇时遇到的常见问题,改进无线局域网的安全策略,采取了"AC 1+1"冗余和AP灾备冗余的方法提高党校局域网的稳定性和可靠性,为全校师生提供无处不在、随时随地可用的智慧校园接入服务,使学校的各项业务变得更加快速、便捷,而且整体设计达到一定安全性和稳定性。 相似文献
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The authors have discussed several alternatives in wireless LAN design: media choice, operating frequency, operating mode, network topology, and access method. Although each technical choice presents both advantages and disadvantages, they argue that there is a design point that provides the best fit with present and future wireless LAN user needs. Considering all factors-including robustness, regulatory considerations, and interference avoidance-using a product based on the slow frequency-hopping spread spectrum, in the 2.4 GHz ISM band, relying on a base station remote station network topology and using a TDMA-based access method is the best way to meet the needs of radio-frequency wireless LAN users. The choices are many, but slow frequency-hopping at 2.4 GHz and TDMA-based medium access control provide the best mix of cost, range, interference, and performance 相似文献
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Intelligent Handoff for Mobile Wireless Internet 总被引:6,自引:0,他引:6
Jon Chiung-Shien Wu Chieh-Wen Cheng Nen-Fu Huang Gin-Kou Ma 《Mobile Networks and Applications》2001,6(1):67-79
This paper presents an intelligent mobility management scheme for Mobile Wireless InterNet – MWIN. MWIN is a wireless service networks wherein its core network consisting of Internet routers and its access network can be built from any Internet-capable radio network. Two major standards are currently available for MWIN, i.e., the mobile IP and wireless LAN. Mobile IP solves address mobility problem with the Internet protocol while wireless LAN provides a wireless Internet access in the local area. However, both schemes solve problems independently at different layers, thereby some additional problems occur, e.g., delayed handoff, packet loss, and inefficient routing. This paper identifies these new problems and performs analyses and some real measurements on the handoff within MWIN. Then, a new handoff architecture that extends the features of both mobile IP and wireless LAN handoff mechanism was proposed. This new architecture consists of mobile IP extensions and a modified wireless LAN handoff algorithm. The effect of this enhancement provides a linkage between different layers for preventing packet loss and reducing handoff latency. Finally, some optimization issues regarding network planning and routing are addressed. 相似文献