Downlink Energy Efficiency Analysis of Some Multiple Antenna Systems

Kakitani, M. T., Brante, G., Souza, R. D. and Imran, M. A. (2013) Downlink Energy Efficiency Analysis of Some Multiple Antenna Systems. In: 2013 IEEE 77th Vehicular Technology Conference (VTC Spring), Dresden, Germany, 02-05 Jun 2013, ISBN 9781467363372 (doi: 10.1109/VTCSpring.2013.6692516)

Abstract

In this paper we compare the energy efficiency of different multiple antenna transmission schemes for long-range wireless networks, assuming a realistic power consumption model. We consider the downlink, between a base station and a mobile station, in which the Alamouti scheme, transmit beamforming, receive diversity, spatial multiplexing, and transmit antenna selection are compared. Our analysis shows that, for different types of base stations, outage probability requirements and spectral efficiencies, the transmit antenna selection scheme is in general the most energy efficient option. Although antenna selection is not the best in terms of outage probability, it becomes the most efficient in terms of overall power consumption as it requires a single radio-frequency chain to obtain spatial diversity.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Imran, Professor Muhammad
• Authors: Kakitani, M. T., Brante, G., Souza, R. D., and Imran, M. A.
• College/School: College of Science and Engineering > School of Engineering
• ISBN: 9781467363372
• Copyright Holders: Copyright © 2013 IEEE
• First Published: First published in 2013 IEEE 77th Vehicular Technology Conference (VTC Spring)
• Publisher Policy: Reproduced in accordance with the publisher copyright policy