Energy-efficient coordinated beamforming with rate dependent processing power

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Title: Energy-efficient coordinated beamforming with rate dependent processing power
Authors: Tervo, OskariTolli, AnttiJuntti, MarkkuTran, Le-Nam
Permanent link: http://hdl.handle.net/10197/12187
Date: 6-Jul-2016
Online since: 2021-05-20T11:51:54Z
Abstract: This paper studies energy-efficient coordinated beamforming in multi-cell multi-user multiple-input single-output (MISO) system. On contrary to the existing approaches where the power consumption of a base station is modeled as a convex or linear function, we consider a more practical model where part of the processing power depends on the rate provided by the base stations. Two optimization criteria are considered, namely network energy efficiency maximization and weighted sum energy efficiency maximization. We develop successive convex approximation based algorithms to tackle these difficult nonconvex problems. The numerical results illustrate that the rate dependent power consumption has a large impact on the energy efficiency, and, thus, has to be taken into account when devising energy-efficient transmission strategies.
Funding Details: European Commission - European Regional Development Fund
Science Foundation Ireland
Funding Details: Infotech Oulu Doctoral Program
Academy of Finland
Type of material: Conference Publication
Publisher: IEEE
Copyright (published version): 2016 IEEE
Keywords: Sequential convex approximationCircuit powerFractional programmingMulti-cellMIMO-OFDM
DOI: 10.1109/SPAWC.2016.7536762
Language: en
Status of Item: Peer reviewed
Is part of: 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2016)
Conference Details: The 2016 IEEE 17th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC 2016), Edinburgh, England, 3-6 July 2016
ISBN: 9781509017492
ISSN: 2325-3789
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
Appears in Collections:Electrical and Electronic Engineering Research Collection

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