Paper Info
Title
Performance analysis of adjustable discontinuous reception (DRX) mechanism in LTE network
Abstract
Long Term Evolution (LTE) is being widely deployed to support real-time applications, such as voice over IP and video games. These power consuming applications require low latency guarantee since a long latency can severely impact user satisfaction. Thus, providing low latency as well as extending user equipment's (UE) battery lifetime is two of the main goals in LTE. The Discontinuous Reception (DRX) mechanism, which is widely adopted in LTE to conserve the mobile phone's battery resources, results in higher latency due to its sleep period. In this paper, we first present the analytical model of DRX mechanism, then propose an adjustable DRX mechanism which can tune the DRX sleep period dynamically. We consider the percentage of time that UE spends in sleep state and wake-up delay as two main performance metrics. Our study concludes that by choosing α = 1 and β = 2 in adjustable DRX mechanism, the wake-up delay decreases by approximately 66.7% for the case that DRX short sleep period equals to 200ms. The smaller value of α and β are suggested for delay sensitive applications. While larger values of α and β are more suitable for applications such as background traffic and social networking.
Year
DOI
Venue
2014
10.1109/WOCC.2014.6839948
WOCC
Keywords
Field
DocType
wake-up delay,user equipment,social networking,mobile handsets,network traffic,ue battery lifetime,adjustable drx mechanism,adjustable discontinuous reception mechanism,sleep state,telecommunication power management,delays,lte network,power consuming applications,real-time applications,delay sensitive applications,long term evolution,telecommunication traffic,secondary cells,mobile phone battery resources,real time applications,probability,steady state
Discontinuous reception,Latency (engineering),Computer science,Computer network,User equipment,Mobile phone,Latency (engineering),Battery (electricity),Voice over IP
Conference
ISSN
Citations 
PageRank 
2379-1268
2
0.42
References 
Authors
5
4
Name
Order
Citations
PageRank
Yu Liu135152.21
Minh Huynh230.83
Ashima Mangla320.42
Dipak Ghosal42848163.40