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A Handover Method for Service Continuity of Mobile Multimedia  

Lee, Jong-Chan (국립군산대학교 컴퓨터과학과)
Lee, Moon-Ho (청운대학교 멀티미디어학과)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.7A, 2007 , pp. 770-777 More about this Journal
Abstract
Smaller cell size in the micro-cell or pico-cell structure brings about more frequent hand-overs between cells, and higher speed movement of the mobile terminal makes short the permissible time interval for executing these hand-over procedures. In this situation the hand-over failure may occur or some packets may be lost during the hand-over. Moreover a rapid degradation of throughput is triggered by packet re-transmission for compensating such errors. The QoS (Quality of Services) of mobile multimedia applications with higher bits rate requirements and higher speed mobility are severely affected by even shot service interruption. This paper proposes a new hand-over scheme to provide seamless services in the next generation mobile communication systems. Simulation is done to evaluate the performance of the proposed scheme based on its hand-over failure rate and packet loss rate.
Keywords
Mobile Multimedia; Handover; QoS; Direction Estimation; Service Continuity;
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