Capacity of multi-service cellular networks with transmission-rate control: a queueing analysis
Proceedings of the 8th annual international conference on Mobile computing and networking
Call admission control for CDMA mobile communications systems supporting multimedia services
IEEE Transactions on Wireless Communications
Admission control in UMTS in the presence of shared channels
Computer Communications
Capacity design and performance of call admission control in cellular CDMA systems
IEEE Journal on Selected Areas in Communications
A fluid model for performance analysis in cellular networks
EURASIP Journal on Wireless Communications and Networking - Special issue on interference management in wireless communication systems: theory and applications
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In this paper, we develop a novel CAC algorithm that takes into account the mobility of users inside the cell with a focus on the downlink of third generation mobile systems. We first study the system capacity in a multiple cell setting and obtain effective bandwidth expressions for different calls as a function of both their positions in the cell as well as their classes of traffic (voice versus data). We then use this formulation to derive a mobility-based admission control algorithm which we analyze by Markov chains. We hence obtain several performance measures, namely the blocking probability, the dropping probability, both intra and inter-cell, as well as the overall cell throughput. We eventually investigate the performance of our CAC and show how to extend the Erlang capacity bounds, i.e., the set of arrival rates such that the corresponding blocking/dropping probabilities are kept below predetermined thresholds.