Paper Info
Title
Maximizing energy efficiency in off-peak hours: A novel sleep scheme for WLAN access points.
Abstract
The number of wireless access points (APs) have increased rapidly in recent years to support increasing demands of wireless local area network. However, some of the research findings show that many of these APs are actually idle mainly during off-peak hours, i.e., there is no active user to support within their coverage areas during that time. Nevertheless, to identify availability of users, all APs are remained powered-on always regardless the presence or absence of any active user inside their coverage areas. To save energy during off-peak hours in idle APs, sleep mechanism could be applied. In this paper, we propose a novel sleep mechanism for IEEE 802.11 wireless local area network APs. In our solution, an AP moves into sleep mode to maximize its energy efficiency (EE) while not harming traffic delay requirements. To decide length of sleep interval of an AP, we propose a dynamic sleep boundary decision algorithm which dynamically sets upper and lower bound of sleep duration considering traffic arrival rate and traffic delay requirements at a given time. Numerical results show the proposed scheme can improve EE of an AP significantly compared to the existing schemes without violating traffic delay requirements.
Year
Venue
Keywords
2016
IEEE IFIP Network Operations and Management Symposium
Sleep mode,access points,energy efficiency
Field
DocType
ISSN
Wireless,Upper and lower bounds,Efficient energy use,Computer science,Idle,Computer network,Real-time computing,Radio frequency,Wi-Fi,Sleep mode,Energy consumption
Conference
1542-1201
Citations 
PageRank 
References 
1
0.34
10
Authors
4
Name
Order
Citations
PageRank
hyeontaek oh1158.66
S. H. Shah Newaz2297.96
Sangdon Park3399.11
Jun-Kyun Choi417543.94