Abstract
In wireless cellular networks, in order to ensure that ongoing calls are not dropped while the owner mobile stations roam among cells, handoff calls may be admitted with a higher priority as compared with new calls. Since the wireless bandwidth is scarce and therefore precious, efficient schemes which allow a high utilization of the wireless channel, while at the same time guarantee the QoS of handoff calls are needed. In this paper, we propose a new scheme that uses GPS measurements to determine when channel reservations are to be made. It works by sending channel reservation request for a possible handoff call to a neighboring cell not only based on the position and orientation of that call’s mobile station, but also depends upon the relative motion of the mobile station with respect to that target cell. The scheme integrates threshold time and various features of prior schemes to minimize the effect of false reservations and to improve the channel utilization of the cellular system. Simulation results show that our scheme performs better in almost all typical scenarios than prior schemes.
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Xu, Z., Ye, Z., Krishnamurthy, S.V., Tripathi, S.K., Molle, M. (2002). A New Adaptive Channel Reservation Scheme for Handoff Calls in Wireless Cellular Networks. In: Gregori, E., Conti, M., Campbell, A.T., Omidyar, G., Zukerman, M. (eds) NETWORKING 2002: Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications. NETWORKING 2002. Lecture Notes in Computer Science, vol 2345. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-47906-6_54
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DOI: https://doi.org/10.1007/3-540-47906-6_54
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