TCP in presence of bursty losses
Proceedings of the 2000 ACM SIGMETRICS international conference on Measurement and modeling of computer systems
Probability and statistics with reliability, queuing and computer science applications
Probability and statistics with reliability, queuing and computer science applications
Network optimization with stochastic traffic flows
International Journal of Network Management
Push-to-talk performance over GPRS
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
ARC: the analytical rate control scheme for real-time traffic in wireless networks
IEEE/ACM Transactions on Networking (TON)
Service Diffusion Strategies for Push to Talk over Cellular
ICMB '05 Proceedings of the International Conference on Mobile Business
The resurgence of push-to-talk technologies
IEEE Communications Magazine
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The PoC (push-to-talk over cellular) application allows point-to-point or point-to-multipoint voice communication between mobile network users. The related work over PoC focuses on the performance analysis only and is ignorant about dimensioning a PoC controller to optimize revenue for service providers. In this paper, we dimension a PoC service with the assumption that the network grade of service is provided. The on-demand sessions should have access priority over pre-established sessions. A PoC controller should be able to terminate a PoC session based on an optimal timer. Moreover, the number of simultaneous session initiations by a PoC client is also a configurable parameter. We derived relations to provide access priority to special PoC sessions based on available transmit/receive units (TRU) and threshold level. Load sharing expressions are reported for a PoC controller using the Lagrange multiplier technique. A simple relation to control the PoC session timer is proposed. Finally, the derivation of maximum number of allowable simultaneous sessions is depicted using two-state Markov models. Numerical results have been computed with the corresponding derivation to provide a useful insight into the system behaviour. A PoC service can benefit from these optimal values of our work during the busy hour.