Title
Reducing power consumption in LTE data scheduling with the constraints of channel condition and QoS
Abstract
3GPP has developed the Discontinuous Reception (DRX) power saving mechanism, which periodically turns off the radio interface to reduce power consumption. However, packets cannot be received during the on period, as a result that the Quality of Services (QoS) may be violated. In addition, channel condition may be unstable during the transmission, so the optimal DRX parameters should also be dynamically adjusted. In this paper, we propose the Dynamic Scheduling with Extensible Allocation and Dispersed Offsets (DXD) scheme, which is composed of two algorithms, DRX parameter decision algorithm, to determine the DRX period by considering channel condition and QoS constraints, and DRX-aware scheduling algorithm, to determine whether to extend the on duration so that QoS would not be affected by DRX. Simulation results demonstrate that our DXD approach can reduce power consumption up to 96.9% compared to no DRX scheme and guarantee QoS as good as no DRX scheme.
Year
DOI
Venue
2014
10.1109/ICCNC.2014.6785427
Computer Networks
Keywords
DocType
Volume
dynamic scheduling,drx power saving mechanism,power consumption,dxd scheme,quality of service,discontinuous reception power saving mechanism,extensible allocation,drx period,channel condition,drx-aware scheduling algorithm,dispersed offsets,channel capacity,drx parameter decision algorithm,qos constraints,long term evolution,3gpp,lte data scheduling,quality of services,radio interface
Journal
75
Issue
ISSN
Citations 
PA
1389-1286
3
PageRank 
References 
Authors
0.40
9
5
Name
Order
Citations
PageRank
Li-Ping Tung1408.56
Ying-Dar Lin2899116.04
Yu-Hsien Kuo330.40
Yuan-Cheng Lai476173.52
Krishna M. Sivalingam51635237.77