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Lecturer Section: Marios Kountouris

Marios Kountouris

Dr. Marios Kountouris

Department of Telecommunications




Analysis and Design of Heterogeneous Cellular Networks using Stochastic Geometry



With the increase in data traffic driven by a new generation of wireless devices, data is expected to overwhelm cellular network capacity in the future. Heterogeneous cellular networks are a comprehensive approach to provide high cellular network capacity by overlaying conventional macrocell cellular architecture with heterogeneous architectural features such as small cellular access points (picocells and femtocells), low-power fixed relays, and distributed antennas. Heterogeneous cellular networks (HetNets) are expected to achieve higher data rates and better coverage by exploiting spatial reuse, while retaining at the same time the seamless connectivity and mobility of cellular networks.

Inspired by the attractive features and potential advantages of HetNets, their development and deployment is gaining momentum in the wireless industry and research communities during the last few years. It has also attracted the attention of standardization bodies such as 3GPP LTE-Advanced. However, HetNets also come with their own challenges, and there are significant technical issues that still need to be addressed for successful rollout and operation of these networks. One of the main challenges is interference management and this talk will present a stochastic geometry based approach to understand and quantify network interference, providing insights and guidelines on how to efficiently design heterogeneous cellular networks.

The talk/course is mainly divided into two parts. In the first part, we will introduce basic notions of stochastic geometry and some performance metrics related to wireless networks. In the second part, we will focus on the design of HetNets and show different scenarios in which stochastic geometry can be used to obtain crisp insights.



Marios Kountouris received the Diploma in Electrical and Computer Engineering from the National Technical University of Athens, Greece in 2002 and the M.S. and Ph.D. degrees in Electrical Engineering from the Ecole Nationale Supérieure des Télécommunications (ENST) Paris, France in 2004 and 2008, respectively. His doctoral research was carried out at Eurecom Institute, France, and it was funded by Orange Labs, France. Since June 2009, he has been an Assistant Professor at the Department of Telecommunications at Supélec (Ecole Supérieure d’Electricité), France. Over the summer 2004 he interned as a Research Engineer at Samsung Advanced Institute of Technology, Korea, developing MU-MIMO precoding and scheduling techniques for 3GPP-LTE and IEEE 802.16e standards. In 2008-2009, he has been with the Department of Electrical and Computer Engineering at The University of Texas at Austin as a research associate, working on wireless ad hoc networks under DARPA’s IT-MANET program. Dr. Kountouris has published several papers and patents all in the area of communications, wireless networks, and signal processing. He has served as technical program committee member for several top international conferences and has served as Workshop Chair for the IEEE Globecom 2010 Workshop on Femtocell Networks, the IEEE ICC 2011 Workshop on Heterogeneous Networks, and the IEEE Globecom 2012 Workshop on Heterogeneous and Small Cell Networks. He is currently an Editor for the EURASIP Journal on Wireless Communications and Networking and Vice Chair of IEEE SIG on Green Cellular Networks. He also received the 2012 IEEE SPS Signal Processing Magazine Award, the IEEE SPAWC 2013 Best Student Paper Award, and the Best Paper Award in Communication Theory Symposium at the IEEE Globecom conference in 2009. He is a Member of the IEEE and a Professional Engineer of the Technical Chamber of Greece.