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Adaptive Group-wise Resource Reservation for Spectral Efficient Handover Prioritization in Cellular Mobile Systems  

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.4, 2009 , pp. 56-63 More about this Journal
Abstract
Resource reservation scheme is effective for better QoS guarantee to handover call for the next generation cellular systems where handover rate highly increases. However, resource reservation for handover call can incur negative impact on the new user admission. In this paper, we propose a random access based adaptive group-wise reservation to effectively reduce dropping rate of handover call, while protecting new local call. In the proposed scheme, target base station divides adaptively future handover users into groups based on the expected handover time, and then does group-wise reservation, where service allocation within each group is done on random access basis. Markov approach is also provided to analyze the performance of the proposed scheme. By computer simulation, it is shown that theoretical analysis on the performance is similar to the simulation results and the proposed reservation scheme outperforms the conventional scheme with respect to dropping probability of handover call.
Keywords
Markov chain;
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Times Cited By KSCI : 1  (Citation Analysis)
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