Effective bandwidths for multiclass Markov fluids and other ATM sources
IEEE/ACM Transactions on Networking (TON)
Artificial Intelligence: A Modern Approach
Artificial Intelligence: A Modern Approach
Optimal bandwidth allocation for bandwidth adaptation in wireless multimedia networks
Computers and Operations Research
Resource management policies in GPRS systems
Performance Evaluation - Dependable systems and networks-performance and dependability symposium (DSN-PDS) 2002: Selected papers
EURASIP Journal on Wireless Communications and Networking
Joint call admission control algorithms: Requirements, approaches, and design considerations
Computer Communications
Optimal network selection in heterogeneous wireless multimedia networks
Wireless Networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Computer Networks: The International Journal of Computer and Telecommunications Networking
Reinforcement learning for joint radio resource management in LTE-UMTS scenarios
Computer Networks: The International Journal of Computer and Telecommunications Networking
Radio resource management in emerging heterogeneous wireless networks
Computer Communications
Optimal control of preemptive systems with loss
Computers and Electrical Engineering
Common Radio Resource Management Algorithms for Multimedia Heterogeneous Wireless Networks
IEEE Transactions on Mobile Computing
Integer linear programming optimization of joint RRM policies for heterogeneous wireless systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
The common RRM approach to admission control for converged heterogeneous wireless networks
IEEE Wireless Communications
IEEE Transactions on Wireless Communications
IEEE Journal on Selected Areas in Communications
Admission policies for integrated voice and data traffic in CDMA packet radio networks
IEEE Journal on Selected Areas in Communications
Call admission control for QoS provisioning in 4G wireless networks: issues and approaches
IEEE Network: The Magazine of Global Internetworking
Resource management for QoS support in cellular/WLAN interworking
IEEE Network: The Magazine of Global Internetworking
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In the next generation wireless networks (NGWNs), where different radio access technologies (RAT) will coexist and work in collaboration to provide ubiquitous access, a mechanism called Joint Call Admission Control (JCAC) will play an important role by deciding whether or not an incoming service request will be accepted according to an admission constraint as well as determining in which RAT (among the available) it will be connected. In this paper, we propose an optimal JCAC for inter-RAT cell re-selection problem also referred to as initial RAT selection in co-located wireless networks, which supports both real-time services and non-real-time services. To properly meet the JCAC goals, we propose a cost function that weigh two criteria: the blocking cost function, which takes into account the priority of each service class in each RAT, and the alternative acceptance cost, which reflects the multiplicity of RATs working in a collaborative fashion, mandatory in NGWN. We use the framework of Semi-Markov Decision Process (SMDP) to formulate the optimization problem and the value iteration algorithm to compute the optimal policy. Our model still takes into consideration the ratio between the radius of the co-located RATs and shows how it may impact on optimal initial RAT selection. Numerical results, supported by an analysis of the structure of the optimal policy, show that the proposed optimal JCAC selects for real-time service class the biggest RAT and for non-real-time service class the smallest one. This optimal JCAC policy is ratified by the current trend in the design of NGWN and also follows the 3rd Generation Partnership Project (3GPP) expectations.