| 基于移动终端的WLAN快速切换方案 |
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| 引用本文： | 徐伟,杨怡,陶军.基于移动终端的WLAN快速切换方案[J].计算机工程,2009,35(14):135-137. |
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| 作者姓名： | 徐伟 杨怡 陶军 |
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| 作者单位： | 东南大学计算机网络与信息集成教育部重点实验室,南京,210096 |
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| 摘 要： | 移动终端在AP间切换产生的时延和抖动严重影响实时业务的质量。通过分析移动终端切换的过程和现有的改进方案，提出一种基于动态域值的扫描触发机制，有效地避免移动终端在静止和AP信号较好条件下的cache更新。在STA上实现基于动态域值触发扫描的分片cache的更新算法，该算法在保证cache及时更新的同时降低每次更新cache的开销且能有效减小切换时延。
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| 关 键 词： | 无线局域网 快速切换 分片cache IEEE802.11协议 |
| 修稿时间： | |
Fast Handoff Solution Based on STA for WLAN |
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| XU Wei,YANG Yi,TAO Jun.Fast Handoff Solution Based on STA for WLAN[J].Computer Engineering,2009,35(14):135-137. |
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| Authors: | XU Wei YANG Yi TAO Jun |
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| Affiliation: | Key Laboratory of Computer Network & Information Integration;Ministry of Education;Southeast University;Nanjing 210096 |
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| Abstract: | The latency and jittering produced by handoff between Access Points(APs) has a serious and negative impact on the quality of the real-time service.Through analysis of the process of handoff and existing improvement program,this paper proposes a scanning trigger mechanism based on dynamic domain values,which effectively avoids cache updates when STA is stable and the associated AP's signal is good.This mechanism and a slice cache update algorithm are realized on the STA,which ensure timely update the cache a... |
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| Keywords: | Wireless Local Area Network(WLAN) fast handoff slice cache IEEE802 11 protocol |
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