Design and performance analysis of an energy-efficient uplink carrier aggregation scheme
Article
Article Title | Design and performance analysis of an energy-efficient uplink carrier aggregation scheme |
---|---|
ERA Journal ID | 4430 |
Article Category | Article |
Authors | Liu, Fei (Author), Zheng, Kan (Author), Xiang, Wei (Author) and Zhao, Hui (Author) |
Journal Title | IEEE Journal on Selected Areas in Communications |
Journal Citation | 32 (2), pp. 197-207 |
Number of Pages | 11 |
Year | 2014 |
Place of Publication | United States |
ISSN | 0733-8716 |
1558-0008 | |
Digital Object Identifier (DOI) | https://doi.org/10.1109/JSAC.2014.141202 |
Web Address (URL) | https://ieeexplore.ieee.org/document/6514952 |
Abstract | Energy efficiency is of vital importance for telecommunications equipment in future networks, especially battery-constrained mobile devices. In the long term evolution-Advanced (LTE-Advanced) network, the carrier aggregation (CA) technique is employed to allow user equipment (UE) to use multiple carriers for high data rate communications. However, multi-carrier transmission entails increased power consumption at user devices in uplink networks. In this paper, we propose a new dynamic carrier aggregation (DCA) scheduling scheme to improve the energy efficiency of uplink communications. Two scheduling methods, i.e., serving the longest queue (SLQ) and round-robin with priority (RRP), are designed to reduce transmit power while maximizing the utilization of wireless resources. The proposed scheme is analyzed in terms of both the data rate and energy conservation. We build an ideally balanced system (IBS) to investigate the performance upper bound of the DCA scheme, and derive closed-form expressions. Simulation results demonstrate that the proposed scheme can not only enhance the energy efficiency but also perform closely to the optimal IBS. |
Keywords | carrier aggregation; carrier scheduling; energy efficiency; LTE-advanced |
ANZSRC Field of Research 2020 | 400602. Data communications |
400604. Network engineering | |
400904. Electronic device and system performance evaluation, testing and simulation | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Beijing University of Posts and Telecommunications, China |
School of Mechanical and Electrical Engineering | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2z43/design-and-performance-analysis-of-an-energy-efficient-uplink-carrier-aggregation-scheme
1733
total views6
total downloads0
views this month0
downloads this month