Research Trends and Capacity Optimization in Next Generation Heterogeneous Networks by Dr. G. Chrisikos

On February 2013, the Aristotle Univ. of Thessaloniki IEEE Student Branch, organized a lecture titled “Reseach Trends and Capacity Optimization in Next Generation Heterogeneous Networks”, in which Dr. George Chrisikos presented the vision, the main idea and the challenges of the Heterogeneous Networks.

In particular, future wireless networks are experiencing exponential growth in traffic due to the proliferation of data-intensive applications. To support this growth, wireless networks are increasingly employing heterogeneous radio access technologies and diverse deployment methodologies. These methodologies include macro, micro, pico, and femtocells, as well as ad-hoc, device-to- device, peer-to-peer, and cognitive radio networks in licensed and unlicensed bands. Traffic optimization and spectrum allocation techniques such as WiFi offload and carrier aggregation are also in development for capacity and data rate enhancements. In addition, multiple-input multiple-output (MIMO) techniques are a key technology component for these current and future wireless networks. Besides its substantial gain in point-to-point communications, MIMO technology has a greater potential in multi-user networks by exploiting spatial and multi-user diversity. In this talk, we discussed advances in network and terminal solutions to address those challenges.

Dr. Chrisikos is responsible for advanced technology development at Qualcomm Inc., and has been working in the research, design, and development of communication systems and algorithms for wireless, satellite, and wireline applications. As the Engineering Director and systems Product Manager at AWR Inc., he was responsible for architecting and leading the development of a simulation technology product that gained widespread adoption by the wireless communication industry worldwide. He has been responsible for the design of semiconductor chipsets such as CDMA and WLAN, and advanced satellite systems for commercial and government sectors. He is involved with IEEE, 3GPP, 3GPP2, GNSS, and broadcast standards.

Dr. Chrisikos is a Fellow of the IEEE, and an IEEE Distinguished Lecturer. He has been an invited speaker at various corporations and conferences worldwide, has authored numerous patents, published papers in international journals and conferences, and contributed to textbooks. He is currently serving as the IEEE Communications Society Standards Board Technical Committee Liaison for the Radio Communications Committee, on the IEEE Eric E. Sumner Award Committee, and on the IEEE Fellow Evaluation Committee. He was named a Guest Editor of the upcoming IEEE JSAC Special Issue on Device-to-Device Communications in Cellular Networks, and as the Panel Chairman of the IEEE International Conference on Communication (ICC 2015). He formerly served in chair roles in other IEEE conferences.

He received the Ph.D. in Electrical Engineering from the University of Southern California (USC), Los Angeles under the USC Dean’s Doctoral Merit Fellowship. He received the M.S. and B.S. degrees in Electrical Engineering as a Presidential Scholar. He graduated Summa Cum Laude with Distinction and was the Valedictorian of his class.

Large MIMO systems: A new paradigm in the area of wireless communications

On March 2012, the Aristotle Univ. of Thessaloniki IEEE Student Branch organized a lecture titled “Large MIMO systems: A new paradigm in the area of wireless communications”, in which Dr. Michalis Matthaiou presented the vision, the main idea, the challenges and the research trends of Large MIMO systems.

Cooperation in Mobile Communications and Research by Dr. D. Michalopoulos



On April 2011, the Aristotle Univ. of Thessaloniki IEEE Student Branch, in collaboration with IEEE Communication Society Greece Chapter, IEEE Aerospace Society and IEEE Vehicular Technology Society, organized a lecture titled “Cooperation in Mobile Communication and Research”, in which Dr. Diomidis Michalopoulos presented the vision, the main idea and the challenges of Cooperative Communications.