A Semi-Soft Handoff Mechanism with Zero Frame Loss in Wireless Lan Networks 


Vol. 28,  No. 12, pp. 1135-1144, Dec.  2003


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  Abstract

In this paper, we proposed a semi-soft handoff mechanism to provide link mobility in IEEE 802.11 wireless LSN environment. Buffers and routing tables in APs and portals are provided in order to reroute frames, which have not been received during handoff time and have been buffered in an old AP, to a new AP after handoff is performed. For the re-routing operation, the MSC routing table should be updated by exchanging information of a mobile terminal between neighbor APs. With our proposed scheme, a wireless LAN node can perform semi-soft handoff while changing its attached AP and provide mobile IP and/or real time service like voice over IP. Also, we have dine simulation for evaluation of the performance of the proposed scheme. We show that our semi-soft handoff mechanism can be applied for real-time service with no frame loss in mobile environment.

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  Cite this article

[IEEE Style]

B. Kim and S. Min, "A Semi-Soft Handoff Mechanism with Zero Frame Loss in Wireless Lan Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 12, pp. 1135-1144, 2003. DOI: .

[ACM Style]

Byung-Ho Kim and Sang-Won Min. 2003. A Semi-Soft Handoff Mechanism with Zero Frame Loss in Wireless Lan Networks. The Journal of Korean Institute of Communications and Information Sciences, 28, 12, (2003), 1135-1144. DOI: .

[KICS Style]

Byung-Ho Kim and Sang-Won Min, "A Semi-Soft Handoff Mechanism with Zero Frame Loss in Wireless Lan Networks," The Journal of Korean Institute of Communications and Information Sciences, vol. 28, no. 12, pp. 1135-1144, 12. 2003.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880