Reducing location update cost in a PCS network
IEEE/ACM Transactions on Networking (TON)
A Fair Admission Control for Large-Bandwidth Multimedia Applications
ICDCSW '02 Proceedings of the 22nd International Conference on Distributed Computing Systems
A Practical Approach for 4G Systems: Deployment of Overlay Networks
TRIDENTCOM '05 Proceedings of the First International Conference on Testbeds and Research Infrastructures for the DEvelopment of NeTworks and COMmunities
An adaptive QoS framework for integrated cellular and WLAN networks
Computer Networks: The International Journal of Computer and Telecommunications Networking - Wireless IP through integration of wireless LAN and cellular networks
Stochastic admission control for quality of service in wireless packet networks
NETWORKING'05 Proceedings of the 4th IFIP-TC6 international conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communication Systems
WLAN-GPRS integration for next-generation mobile data networks
IEEE Wireless Communications
A communication gateway for infrastructure-independent 4G wireless access
IEEE Communications Magazine
IEEE Journal on Selected Areas in Communications
Joint call admission control algorithms: Requirements, approaches, and design considerations
Computer Communications
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
Exploring load balancing in heterogeneous networks by rate distribution
International Journal of Autonomous and Adaptive Communications Systems
Optimal joint call admission control with vertical handoff on heterogeneous networks
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part II
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In the next generation wireless systems (NGWS) the end user will be able to connect to any of the different available access networks. The end user will also be able to roam seamlessly within the access networks through vertical handoffs. While these features of the NGWS are very advantageous for service providers as well as end users, technically they bring about many challenges to the joint call admission control (JCAC) algorithm. In addition to making decisions during new or handoff calls, the JCAC should perform load balancing among the different access networks. In this paper, we extend the hierarchical joint call admission control algorithm by proposing a scheme for load balancing. In the hierarchical approach, the work of the JCAC is divided into the algorithms horizontal call admission control (HCAC) and vertical call admission control (VCAC). A VCAC manages the inter-network admission of multiple access networks while in each access network there is an HCAC that controls its intra-network admission. In the proposed load balancing scheme, each HCAC in a heterogeneous environment periodically sends a load report to the VCAC. The VCAC makes a comparison of the load reports and makes a decision for load balancing.