Dynamic downlink aggregation carrier scheduling scheme for wireless networks

Zheng, Kan and Liu, Fei and Xiang, Wei and Xin, Xuemei (2014) Dynamic downlink aggregation carrier scheduling scheme for wireless networks. IET Communications, 8 (3). pp. 114-123. ISSN 1751-8628

Abstract

Carrier aggregation has been accepted as a means of bandwidth extension in the third generation long-term evolution advanced (LTE-advanced) network, in an effort to support high data rate transmission with backwards compatibility. Since there are two or more component carriers (CCs) to be aggregated, it is crucial to design efficient carrier scheduling schemes. In this study, the authors propose a novel dynamic aggregation carrier (DAC) scheme for downlink transmission, which enables CCs to aggregate with each other in a dynamic manner. The dynamic nature of the new scheme allows the total capacity of all CCs to be fully utilised to serve flows, whereas the number of aggregated supplementary CCs is decreased so as to lower the computational complexity at user equipment (UE). Furthermore, the performances of the new scheme and two other carrier scheduling schemes are evaluated thoroughly through both analytical and simulation results. It is demonstrated that the DAC scheme offers good performances in terms of delay and throughput while reducing energy consumption and the signalling overhead at UEs.


Statistics for USQ ePrint 25114
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © The Institution of Engineering and Technology 2013. Funding Details: Sponsor: 61271183; NSFC; National Natural Science Foundation of China. Published Version restricted in accordance with publisher copyright policy.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering
Date Deposited: 23 Apr 2014 21:54
Last Modified: 04 Jul 2016 04:11
Uncontrolled Keywords: bandwidth; LTE network; scheduling schemes; increased speed
Fields of Research : 10 Technology > 1005 Communications Technologies > 100504 Data Communications
09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing
10 Technology > 1005 Communications Technologies > 100510 Wireless Communications
Socio-Economic Objective: B Economic Development > 89 Information and Communication Services > 8901 Communication Networks and Services > 890103 Mobile Data Networks and Services
B Economic Development > 89 Information and Communication Services > 8901 Communication Networks and Services > 890104 Mobile Telephone Networks and Services
Identification Number or DOI: 10.1049/iet-com.2013.0271
URI: http://eprints.usq.edu.au/id/eprint/25114

Actions (login required)

View Item Archive Repository Staff Only