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Relay Station based Optimal Handoff Prioritization Control Algorithm  

Yu, Hye-In (Ewha W. University)
Kang, Hae-Lynn (Ewha W. University)
Kim, Nak-Myeong (Ewha W. University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.46, no.7, 2009 , pp. 24-31 More about this Journal
Abstract
Resource reservation scheme is an effective method to guarantee QoS for handoff calls in the next generation multimedia mobile communication systems, but it causes negative impacts on blocking probability of new calls. In this paper, to optimize the tradeoff between dropping probability of handoff calls and blocking probability of new calls, relay station based handoff prioritization control algorithm is proposed. In this algorithm, the relay station participates in handoff procedure and enables mobile stations to have guaranteed prompt service after handoff by providing highly efficient data transmission. In this paper, Markov chain models of the proposed handoff prioritization schemes are developed, and dropping probability of handoff packets and blocking probability of new packets are derived. By numerical analysis, the proposed algorithm has been proved to outperform conventional handoff prioritization schemes in terms of dropping probability of handoff packets and blocking Probability of new packets.
Keywords
Relay; Markov chain;
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Times Cited By KSCI : 1  (Citation Analysis)
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