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Preemptive mobile assisted and guard channel based handoff queuing scheme
Sanon K., Joshi S.
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Mobility is an important aspect of any time, any where next generation wireless communication networks. Handoff supports this mobility of the users and allows them to move from one cell to another without service interruption or degradation and in true sense makes a user mobile. Handoff failure results in forced termination of an ongoing call so the handoff requests need to be prioritized over originating call requests. This paper discusses a preemptive scheme which uses channel reservation for handoff requests as well as allows ongoing non-real time calls to be preempted by real-time handoff calls arriving in the network. Handoff decisions are assumed to be Mobile-Assisted and hence calls are handed over to Base stations with good-quality signals. Markov chain model of the proposed scheme has been designed and dropping and blocking probabilities of the calls arriving at the network have been computed. © 2011 IEEE.
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