LTE-Advanced DRX Mechanism for Power Saving (PDF)

Resource allocation and power optimization is a new challenge in
multimedia services in cellular communication systems. To
provide 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 mobile
access to accommodate today's data-heavy applications.
LTE/LTE-Advanced has adopted discontinuous reception (DRX) to
extend the user equipment's battery lifetime, thereby further
supporting various services and large amounts of data
transmissions.

By introducing the basics of mathematical analysis and performance
evaluation of power-saving mechanisms in 3rd generation partnership
project (3GPP) LTE and LTE-Advanced networks, the authors of this
book aim to describe novel algorithms which could have better
performance capabilities than previous methods.

Chapter 1 gives the basic theory description of the 3GPP LTE
network and 3GPP DRX power saving mechanism, empirical measurements
of LTE network traffic and an overview of the basic LTE DRX model
in the field of power saving techniques. Chapter 2 provides steps
for deriving a 2-state analytical model up to a 4-state DRX model.
The third and final chapter summarizes alternative methods for the
implementation of LTE DRX.

Contents

1. Basic Theory.

2. Analytical Semi-Markov Power-Saving Models.

3. Other Approaches for LTE Power Saving.

About the Authors

Scott A. Fowler is Associate Professor at Linköping
University, Sweden, working with the Mobile Telecommunication (MT)
group. He has served on several IEEE conferences/workshops as TPC
to Chair, including Special Interest Groups coordinator for IEEE
Communications Software (CommSoft) Technical Committee since 2012.
His research interests include Quality of Service (QoS) support
over 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-Est
Créteil VdM (UPEC, ex. Paris 12), Networks &
Telecommunications (N&T) Department (IUT C/V) and LiSSi
Laboratory in France. He is a founder of the Network Control
Research activity with extensive international academic and
industrial collaborations. His general area of research is in
adaptive real-time control for high-speed new generation dynamic
wired/wireless networking in order to maintain acceptable Quality
of Service/Experience for added-value services.

Naomi Yamada is a research associate at Linköping University,
Sweden.