Mobile Cellular Telecommunications: Analog and Digital Systems
Mobile Cellular Telecommunications: Analog and Digital Systems
Theory, Volume 1, Queueing Systems
Theory, Volume 1, Queueing Systems
Handling mobility in a wireless ATM network
INFOCOM'96 Proceedings of the Fifteenth annual joint conference of the IEEE computer and communications societies conference on The conference on computer communications - Volume 3
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On the ATM-based wired/wireless integrated network, we propose a connection re-routing method which reduces the inter-cluster handoff delay by reserving VPI/VCIs for possible inter-cluster handoff calls in advance. Additionally, we propose wired resource reservation methods, which are the auxiliary method and the split method, for handoff QoS guarantee of various expected services. The characteristics of these methods reserve wired connection resources based on the information on the possible inter-cluster handoff calls. With mathematical analysis, we also propose an algorithm and cost function for deciding the optimal amount in reserving resources. With numerical examples, we can see that the auxiliary method effectively reduces the cost in all cases (\alpha \beta, \alpha =\beta, and \alpha ). The split method, however, has good effects on cost reduction, only in case that the capacity of total resource C_\mathrm{T} is relatively small and handoff calls have priority over new calls. The numerical results show that these reservation methods can flexibly cope with the time-variant environment and meet the QoS requirements on the inter-cluster handoff calls.