Title:
Energy-Efficient Wireless Systems: Femto Relay Networks
Date:
Friday, September 10 at 11am
Location:
Room E2-361, EITC, University of Manitoba, Fort Garry Campus
Speaker:
Dr. Nandana Rajatheva
Abstract:
Energy efficiency is a keyword in the design of future wireless systems. A lot of work has been carried out in the performance analysis of mobile networks though the attention has been mostly to improve the capacity, spectral efficiency and on the coverage enhancing concepts. Recently more focus is how to minimize the energy consumption in the overall network, especially at the base station. The concept of femtocells tries to address the issue in a more distributed manner bringing the coverage inside buildings, trains, buses etc. Integrated together with a macro base station, it will reduce the energy burden and spectrum issues by shifting more bandwidth hungry users into the femtocell. One main issue then would be to consider the power allocation possibilities for the users, access point and the base station.
In our case we investigate several scenarios, e.g., where the femto access point is configured as a relay serving the users in a mobile configuration, i.e., ‘mobile femto’ as well as the situation where there could be a satellite link connecting the access point serving remote areas, etc. These are therefore dual hop communication systems. We analyze the performance under different configurations and consider the power allocation options in certain settings.
Speaker Bio:
Dr. Nandana Rajatheva received the B.Sc. degree in electronics and telecommunication engineering (with first-class honors) from the University of Moratuwa, Sri Lanka, in 1987, M.Sc. and Ph.D. degrees from the University of Manitoba, in 1991 and 1995, respectively. From May 1996 to December 2001, he was an Associate Professor with Telecommunications-School of Advanced Technology, Asian Institute of Technology, Thailand. He was also with the University of Moratuwa from 2002-2004, where he became a Professor of Electronics and Telecommunication engineering in June 2003. He is now an Associate Professor of Telecommunications and an Associate Dean in the School of Engineering and Technology, Asian Institute of Technology, Thailand.
Currently he is on sabbatical leave and is a visiting Professor at the Centre for Wireless Communication (CWC), University of Oulu, Finland. He is an Editor for the International Journal of Vehicular Technology (Hindawi). His research interests include energy efficient wireless systems, cooperative diversity, relay networks & coding, resource allocation in OFDMA and detection/estimation techniques in cognitive radio. Dr. Rajatheva is a Senior Member of the IEEE Communications and Vehicular Technology Societies.
Contact:
For questions or more information: Ekram Hossain 474-8908.
