On the handoff arrival process in cellular communications
Wireless Networks
Wcdma for Umts
IEEE Transactions on Mobile Computing
EURASIP Journal on Wireless Communications and Networking
Joint call admission control algorithms: Requirements, approaches, and design considerations
Computer Communications
Defining 4G technology from the users perspective
IEEE Network: The Magazine of Global Internetworking
Integer linear programming optimization of joint RRM policies for heterogeneous wireless systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
Engineering Applications of Artificial Intelligence
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There is a problem of unfairness in allocation of radio resources among heterogeneous mobile terminals in heterogeneous wireless networks. Low-capability mobile terminals (such as single-mode terminals) sutTer high call blocking probability whereas high-capability mobile terminals (such as quad-mode terminals) experience very low call blocking probability, in the same heterogeneous wireless network. This paper proposes a joint call admission control (JCAC) algorithm to reduce this problem of unfairness. The proposed JCAC algorithm makes call admission decisions based on mobile terminal modality (capability), network load, and radio access technology (RAT) terminal support index. The objectives of the proposed JCAC algorithm are to reduce call blocking/ dropping probability, and ensure fairness in allocation of radio resources among heterogeneous mobile terminals in heterogeneous networks. We develop an analytical model to evaluate the performance of the proposed JCAC scheme in heterogeneous wireless networks and derive expression for call blocking/ dropping probability. The performance of the proposed JCAC algorithm is compared with that of other JCAC algorithm. Results show the proposed algorithm reduces call blocking/ dropping probability in the networks, and ensure fairness in allocation of radio resources among heterogeneous terminals.