Probability, stochastic processes, and queueing theory: the mathematics of computer performance modeling
Wide area traffic: the failure of Poisson modeling
IEEE/ACM Transactions on Networking (TON)
IEEE/ACM Transactions on Networking (TON)
Wcdma for Umts
Introduction to Probability Models, Ninth Edition
Introduction to Probability Models, Ninth Edition
Modeling UMTS discontinuous reception mechanism
IEEE Transactions on Wireless Communications
DRX mechanism for power saving in LTE
IEEE Communications Magazine
Analysis of discontinuous reception (DRX) with both downlink and uplink packet arrivals in 3GPP LTE
Proceedings of the 6th International Conference on Queueing Theory and Network Applications
Mobility management with the central-based location area policy
Computer Networks: The International Journal of Computer and Telecommunications Networking
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The universal mobile telecommunications system (UMTS) utilizes the discontinuous reception (DRX) mechanism to reduce the power consumption of mobile stations (MSs). DRX permits an idle MS to power off the radio receiver for a predefined sleep period, and then wake up to receive the next paging message. The sleep/wake-up scheduling of each MS is determined by two DRX parameters: the inactivity timer threshold and the DRX cycle. In the literature, analytic and simulation models have been developed to study the DRX performance mainly for Poisson traffic. In this paper, we propose a novel semi-Markov process to model the UMTS DRX with bursty packet data traffic. The analytic results are validated against simulation experiments. We investigate the effects of the two DRX parameters on output measures including the power saving factor and the mean packet waiting time. Our study provides inactivity timer and DRX cycle value selection guidelines for various packet traffic patterns.