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Energy Efficiency Analysis of Idealized Coordinated Multi-Point Communication System

Héliot, Fabien, Imran, Muhammad Ali and Tafazolli, Rahim Energy Efficiency Analysis of Idealized Coordinated Multi-Point Communication System In: IEEE 73rd Vehicular Technology Conference: VTC2011-Spring, 15-18 May 2011, Budapest, Hungary.

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Abstract

Coordinated multi-point (CoMP) architecture has proved to be very effective for improving the user fairness and spectral efficiency of cellular communication system, however, its energy efficiency remains to be evaluated. In this paper, CoMP system is idealized as a distributed antenna system by assuming perfect backhauling and cooperative processing. This simplified model allows us to express the capacity of the idealized CoMP system with a simple and accurate closed-form approximation. In addition, a framework for the energy efficiency analysis of CoMP system is introduced, which includes a power consumption model and an energy efficiency metric, i.e. bit-per-joule capacity. This framework along with our closed-form approximation are utilized for assessing both the channel and bit-per-joule capacities of the idealized CoMP system. Results indicate that multi-base-station cooperation can be energy efficient for cell-edge communication and that the backhauling and cooperative processing power should be kept low. Overall, it has been shown that the potential of improvement of CoMP in terms of bit-per-joule capacity is not as high as in terms of channel capacity due to associated energy cost for cooperative processing and backhauling.

Item Type: Conference or Workshop Item (Poster)
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Copyright 2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Related URLs:
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Communication Systems Research
Depositing User: Fabien Heliot
Date Deposited: 15 Jul 2011 14:29
Last Modified: 23 Sep 2013 18:43
URI: http://epubs.surrey.ac.uk/id/eprint/5218

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