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Energy Efficiency-Spectral Efficiency Trade-Off of Transmit Antenna Selection

Rayel, OK, Brante, G, Rebelatto, JL, Souza, RD and Imran, MA (2014) Energy Efficiency-Spectral Efficiency Trade-Off of Transmit Antenna Selection IEEE TRANSACTIONS ON COMMUNICATIONS, 62 (12). pp. 4293-4303.

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Abstract

We investigate the energy efficiency-spectral efficiency (EE-SE) trade-off of transmit antenna selection/maximum ratio combining (TAS) scheme. A realistic power consumption model (PCM) is considered, and it is shown that using TAS can provide significant energy savings when compared to multiple-input multiple-output (MIMO) in the low to medium SE region, regardless the number of antennas, as well as outperform transmit beamforming scheme (MRT) for the entire SE range. For a fixed number of receive antennas, our results also show that the EE gain of TAS over MIMO becomes even greater as the number of transmit antennas increases. The optimal value of SE that maximizes the EE is obtained analytically, and confirmed by numerical results. Moreover, the influence of receiver correlation is also evaluated and it is shown that considering a non-realistic PCM can lead to mistakes when comparing TAS and MIMO.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Authors :
AuthorsEmailORCID
Rayel, OKUNSPECIFIEDUNSPECIFIED
Brante, GUNSPECIFIEDUNSPECIFIED
Rebelatto, JLUNSPECIFIEDUNSPECIFIED
Souza, RDUNSPECIFIEDUNSPECIFIED
Imran, MAUNSPECIFIEDUNSPECIFIED
Date : 1 December 2014
Identification Number : 10.1109/TCOMM.2014.2364040
Uncontrolled Keywords : Science & Technology, Technology, Engineering, Electrical & Electronic, Telecommunications, Engineering, Transmit antenna selection, energy efficiency, spectral efficiency, WIRELESS SENSOR NETWORKS, WIDE-BAND REGIME, MIMO SYSTEMS, DIVERSITY SYSTEMS, CAPACITY, MRC, APPROXIMATION, CHANNELS, OUTAGE, JOULE
Related URLs :
Additional Information : Copyright 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
Depositing User : Symplectic Elements
Date Deposited : 22 Apr 2015 09:53
Last Modified : 22 Apr 2015 09:53
URI: http://epubs.surrey.ac.uk/id/eprint/807409

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