IEEE802.11切换中一种快速主动扫频算法

Abstract

Abstract:

A fast active scanning algorithm is proposed for IEEE 802.11 handoff.Firstly,the STA select the scanned APs from neighbor AP graph with location information;Second,the STA begin to probe the APs using uni-cast way.The algorithm reduces the delay which is brought by wasted channels,waited time and collisions.Simulation shows that the algorithm not only finishes the handoff but also reduces remarkably the latency.

Key words: IEEE 802.11;handoff;active scanning algorithm;neighbor AP graph

CLC Number:

TN919

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YANG Wei-Dong, LIU Ji-Zhao. A Fast Active Scanning Algorithm for IEEE 802.11 Handoff[J]., 2010, 23(8): 9-.

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URL: https://journal.xidian.edu.cn/dzkj/EN/

https://journal.xidian.edu.cn/dzkj/EN/Y2010/V23/I8/9

References

［1］IEEE.Part 11:Wireless LAN Medium Access Control (MAC)and Physical Layer (PHY)Specifications［S］.IEEE Standard 80211,1999.

［2］Zeadally S,Nanduri S.Fast Secure Handoff in Public Wireless LANs［C］.IEEE Vehicular Technology Conference,2004.

［3］Mishra A,Shin M H,Albaugh W.An Empirical Analysis of the IEEE 80211 MAC Layer Handoff Process［J］.ACM SIGCOMM Computer Communication Review,2003(3):93-102.

［4］IEEE.Recommended Practice for Multi-Vendor Access Point Interoperability via an Inter-Access Point Protocol Across Distribution Systems Supporting IEEE 8021 Operation［S］.IEEE Standard 80211,2003.

［5］Shin M,Mishra A,Arbaugh W.Improving the Latency of 80211 Handoffs Using Neighbor Graphs［C］.in Proc.the 2nd Intl Conf.Mobile Syst.,Applications,and Services,2004:70-83.

［6］Zhou Z G,Chen R,Chumchu P,et al.A Software Based Indoor Relative Location Management System［C］.Canada:In Proceedings of Wireless and Optical Communications,2002.

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A Fast Active Scanning Algorithm for IEEE 802.11 Handoff

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