Rate-and-power control based energy-saving transmissions in OFDMA-based multicarrier base stations

In parallel with the amazing increase in mobile data traffic, the fast-growing requirement and development of the green communication technology have led to many energy-saving designs in mobile networks. Meanwhile, as advanced cellular technologies progress, more than one component carrier (CC) can...

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Bibliographic Details
Published inIEEE systems journal Vol. 9; no. 2; pp. 578 - 584
Main Author Chung, Yao-Liang
Format Journal Article
LanguageEnglish
Published IEEE 01.06.2015
Subjects
Bandwidth
Downlink
Energy consumption
Energy saving
green communications
Heuristic algorithms
LTE-Advanced
OFDMA
radio resource allocation
Resource management
Scheduling algorithms
Transceivers
green communications
OFDMA
Energy saving
radio resource allocation
LTE-Advanced
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Summary:In parallel with the amazing increase in mobile data traffic, the fast-growing requirement and development of the green communication technology have led to many energy-saving designs in mobile networks. Meanwhile, as advanced cellular technologies progress, more than one component carrier (CC) can now be jointly utilized in a base station (BS). As a result, the energy consumption of the BS has become an important concern. In this paper, a novel green rate-and-power control transmission scheme is therefore proposed for the BS transmission to address the problem of energy minimization at BS transceivers subject to certain quality-of-service and fairness requirements for all users. Communication activities in downlink transmissions of the BS with orthogonal frequency-division multiple access-based multi-CCs are considered. Simulation results demonstrate that the energy consumption of the proposed novel energy-saving scheme is much better than that of existing schemes, when all schemes satisfy the same constraints.
ISSN:1932-8184
1937-9234
DOI:10.1109/JSYST.2013.2251231