LTE-Advanced DRX Mechanism for Power Saving

Resource allocation and power optimization is a new challenge inmultimedia services in cellular communication systems. Toprovide a better end-user experience, the fourth generation (4G)standard Long Term Evolution/Long Term Evolution-Advanced(LTE/LTE-Advanced) has been developed for high-bandwidth mobileaccess to accommodate today's data-heavy applications.LTE/LTE-Advanced has adopted discontinuous reception (DRX) toextend the user equipment's battery lifetime, thereby furthersupporting various services and large amounts of datatransmissions.By introducing the basics of mathematical analysis and performanceevaluation of power-saving mechanisms in 3rd generation partnershipproject (3GPP) LTE and LTE-Advanced networks, the authors of thisbook aim to describe novel algorithms which could have betterperformance capabilities than previous methods.Chapter 1 gives the basic theory description of the 3GPP LTEnetwork and 3GPP DRX power saving mechanism, empirical measurementsof LTE network traffic and an overview of the basic LTE DRX modelin the field of power saving techniques. Chapter 2 provides stepsfor deriving a 2-state analytical model up to a 4-state DRX model.The third and final chapter summarizes alternative methods for theimplementation of LTE DRX.Contents1. Basic Theory.2. Analytical Semi-Markov Power-Saving Models.3. Other Approaches for LTE Power Saving.About the AuthorsScott A. Fowler is Associate Professor at LinköpingUniversity, Sweden, working with the Mobile Telecommunication (MT)group. He has served on several IEEE conferences/workshops as TPCto Chair, including Special Interest Groups coordinator for IEEECommunications Software (CommSoft) Technical Committee since 2012.His research interests include Quality of Service (QoS) supportover heterogeneous networks, computer networks (wired, wireless),energy management, mobile computing, pervasive/ubiquitous,performance evaluation of networks and security.Abdelhamid Mellouk is Full Professor at the University of Paris-EstCréteil VdM (UPEC, ex. Paris 12), Networks &Telecommunications (N&T) Department (IUT C/V) and LiSSiLaboratory in France. He is a founder of the Network ControlResearch activity with extensive international academic andindustrial collaborations. His general area of research is inadaptive real-time control for high-speed new generation dynamicwired/wireless networking in order to maintain acceptable Qualityof Service/Experience for added-value services.Naomi Yamada is a research associate at Linköping University,Sweden.