Paper Info
Title
DRX over LAA-LTE-A New Design and Analysis Based on Semi-Markov Model
Abstract
Ever-increasing demand of data rate and subscriber penetration are resulting in continuous growth of mobile data traffic. In order to meet this exponential data traffic growth 3GPP Release 13, we have decided to enable the operation of Long Term Evolution (LTE) in the unlicensed band, termed as Licensed-Assisted Access (LAA). As the unlicensed spectrum is mainly used by WiFi, LTE evolved NodeB (eNB) has to perform Listen Before Talk (LBT) procedure to access the unlicensed channel. If the unlicensed spectrum is occupied by other services, User Equipment (UE) should remain active and wait for unlicensed channel to become idle. UE consumes a high power by remaining active, when unlicensed channel is not available. The UE's energy consumption could be saved by configuring Discontinuous Reception (DRX) in the unlicensed band, similar to DRX in LTE. In this article, we introduce and analyze a new Licensed-Assisted Access DRX mechanism (LAA-DRX) over LTE networks. Using our novel four state semi-Markov model, we show the probabilistic estimation of power saving and wake up latency associated with our proposed LAA-DRX process. Mathematical analysis and simulation results, using real wireless trace, point out that comparing to existing LTE DRX process, our LAA-DRX can achieve almost 4 percent higher power savings and up to 58 percent reduction in resource usage.
Year
DOI
Venue
2019
10.1109/TMC.2018.2835443
IEEE Trans. Mob. Comput.
Keywords
Field
DocType
Long Term Evolution,Wireless fidelity,3GPP,Analytical models,Energy consumption,Interference,Proposals
Discontinuous reception,Spectrum management,Wireless,NodeB,Computer science,Communication channel,Computer network,User equipment,Mobile broadband,LTE Advanced
Journal
Volume
Issue
ISSN
18
2
1536-1233
Citations 
PageRank 
References 
3
0.39
0
Authors
3
Name
Order
Citations
PageRank
Mukesh Kumar Maheshwari1122.63
Abhishek Roy245132.21
Navrati Saxena357744.48