Performance Analysis for Dual Band PCS Networks
IEEE Transactions on Computers
IEEE Transactions on Mobile Computing
Adaptive guard channel allocation and blocking probability estimation in PCS networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Predictive distance-based mobility management for multidimensional PCS networks
IEEE/ACM Transactions on Networking (TON)
IEEE Transactions on Mobile Computing
Mobility Modeling and Performance Evaluation of Heterogeneous Wireless Networks
IEEE Transactions on Mobile Computing
WLAN-GPRS integration for next-generation mobile data networks
IEEE Wireless Communications
Vertical handoffs in fourth-generation multinetwork environments
IEEE Wireless Communications
Handover management in integrated WLAN and mobile WiMAX networks
IEEE Wireless Communications
Resource management for QoS support in cellular/WLAN interworking
IEEE Network: The Magazine of Global Internetworking
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In wireless networks, guard channel based Call Admission Control (CAC) schemes are widely used to protect handoff calls for seamless wireless services. However, the introduction of the guard channels in wireless networks results in the increase in the new call blocking probability. This general situation also occurs in a 3G-WLAN integrated network. To solve this problem in a 3G-WLAN integrated network for QoS support, we propose an adaptive guard channel based Call Admission Control (CAC) scheme in this paper. The main objective of our guard channel based CAC scheme is to alleviate the increase in the new call blocking probability due to guard channels while it can still protect the handoff calls. For the design of our adaptive guard channel based CAC scheme, we first develop and analyze a performance model for a general guard channel based CAC scheme based on a non-homogeneous quasi birth and death model. The analytic results are used to design our adaptive guard channel based CAC scheme. Numerical studies show that our adaptive guard channel based CAC scheme can achieve its objective.