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The increasing demand for advanced services in wireless networks raises theproblem for quality of service (QoS) provisioning with proper resourcemanagement. In this research, such a provisioning technique for wirelessnetworks is performed by Call Admission Control (CAC). A new approach in CACnamed by Uniform Fractional Band (UFB) is proposed in this work for thewireless networks for providing proper priority between new calls and handovercalls. This UFB scheme is basically a new style of handover priority scheme.Handover priority is provided by two stages in this scheme which help thenetwork to utilize more resources. In addition, the handover call rateestimation and its impact on QoS provisioning is discussed widely to attain theoptimum QoS in proposed handover priority scheme. In multiple servicesproviding wireless network, excessive call blocking of lower priority trafficis very often event at very high traffic rate which is a concerning issue forQoS provisioning. To attain such QoS provisioning for multiple services,another CAC scheme is proposed in this research work. This scheme is recognizedby Uniform Band Thinning (UBT) scheme which is based on uniform thinningtechnique (UTT) and this is quite similar idea as UFB scheme. In this scheme, aset of channels experiences the fractionizing policy. This scheme reduces thecall blocking probabilities (CBP) of lower priority traffic classes withoutnotably increasing the CBP of the higher priority traffic classes. Theanalytical functions of this scheme are deduced in general form which is usefulto deduce for any number of traffic classes. In addition, numerical analysis ofthe proposed UBT scheme shows that the performances in terms of call blockingprobability, overall call blocking probability, and channel utilization areimproved and optimized compared to the conventional fixed guard channel scheme.

QoS Provisioning Using Optimal Call Admission Control for Wireless Cellular Networks