Mathematics of Operations Research
On the handoff arrival process in cellular communications
Wireless Networks
Mobility increases the capacity of ad hoc wireless networks
IEEE/ACM Transactions on Networking (TON)
Flow-level performance and capacity of wireless networks with user mobility
Queueing Systems: Theory and Applications
A selfish approach to coalition formation among unmanned air vehicles in wireless networks
GameNets'09 Proceedings of the First ICST international conference on Game Theory for Networks
Optimizing cell size in pico-cell networks
WiOPT'09 Proceedings of the 7th international conference on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks
Propagation measurements and models for wireless communications channels
IEEE Communications Magazine
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In this work, we characterize the performance of Picocell networks in the presence of moving users. We model various traffic types between base-stations and mobiles as different types of queues. We derive explicit expressions for expected waiting time, service time and drop/block probabilities for both fixed as well as random velocity of mobiles. We obtain (approximate) closed form expressions for optimal cell size when the velocity variations of the mobiles is small for both non-elastic as well as elastic traffic. We conclude from the study that, if the expected call duration is long enough, the optimal cell size depends mainly on the velocity profile of the mobiles, its mean and variance. It is independent of the traffic type or duration of the calls. Further, for any fixed power of transmission, there exists a maximum velocity beyond which successful communication is not possible. This maximum possible velocity increases with the power of transmission. Also, for any given power, the optimal cell size increases when either the mean or the variance of the mobile velocity increases.