Exploiting spatial and temporal locality for seamless vertical handover

Authors:
Younghyun Kim;Sangheon Pack;Chung Gu Kang;Soonjoon Park
Affiliations:
School of Electrical Engineering, Korea University, Korea;School of Electrical Engineering, Korea University, Korea;School of Electrical Engineering, Korea University, Korea;Mobile Communication Technology Research Lab, LG Electronics Inc., Korea
Venue:
ISCIT'09 Proceedings of the 9th international conference on Communications and information technologies
Year:
2009

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Abstract

Seamless vertical handover is a key requirement in heterogeneous wireless networks where different networks are integrated. In this paper, we introduce an enhanced information server (EIS) in the IEEE 802.21 media independent handover (MIH) architecture. We also propose an improved vertical handover procedure in which the wireless channel condition is estimated by exploiting spatial and temporal locality at the EIS. Simulation results demonstrate that the proposed scheme can reduce the vertical handover latency by 13% by eliminating timeconsuming channel scanning procedure.