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A comprehensive study was presented for WLAN 802.11b using error-prone channel. It was theoretically and numerically evaluated the performance of three different network sizes with the bit rates that available in 802.11b protocol. Results show that throughput does not change with the size of the network for wide range of bit error rates (BERs) and the channel bit rates play a significant role in the main characteristics of the network. A comprehensive explanation has given for the phenomenon of the packet delay suppression at relatively high level of BERs in view of the size of the networks and the BERs. The effect length of the transmitting packets is also investigated. 相似文献
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随着无线网络的迅速发展,网络上的业务流量与日俱增,如何保证无线局域网实时业务服务质量的问题也越来越突出.在分析IEEE802.11e的MAC接入机制及其在提供QoS方面存在局限性的基础上,提出了一种增强无线局域网服务质量的新算法--PCWA算法.该算法与EDCA机制相比,明显降低实时业务平均时延,显著提高网络吞吐量. 相似文献
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张辉 《铁路通信信号工程技术》2009,6(2):44-46,50
通过深圳轨道交通1号线工程建设实例,详细分析了无线局域网技术在轨道交通建设中的应用。 相似文献
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介绍WLAN标准的进展和WLAN的基本结构,简要分析现代城轨交通中无线通信系统的需求,提出WLAN在城轨交通系统中应用的可行性。 相似文献
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无线局域网因为其灵活性、可移动性等优点而迅速发展,但其存在着的安全隐患越来越成为阻止其进一步发展的障碍。本文从无线局域网标准的发展过程的角度对无线局域网安全问题进行了全面分析。 相似文献
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文章介绍了IEEE802.11家谱族标准,给出了室内环境中几种组网解决方案。 相似文献
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Formal analysis of authentication in 802.11i 总被引:1,自引:0,他引:1
Authentication is the basis of the security of IEEE 802.11i standard. The authentication process in 802.11i involves two important protocols: a 4-way handshake and a group key handshake. A formal analysis of authentication in 802.11i is given via a belief multisets formalism. The analysis shows that the 4-way handshake and the group key handshake may provide satisfactory mutual authentication, key management, and issue of a new group temporal key from an access point to a user device, under the guarantee of mutual possession of a confidential pairwise master key. The analysis also shows that there exists a denial of service attack in the 4-way handshake and some seeming redundancies are useful in the protocol implementation. 相似文献
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无线局域网技术及其应用 总被引:1,自引:0,他引:1
赵昕 《铁路通信信号工程技术》2007,4(1):35-37
本文简要介绍了近年来发展迅速的无线局域网技术,并结合实际工程案例进行了相关说明。 相似文献