69cf3305_bstracts___IEEE_GreenTech_2013__Category____Sub_Category
[Paper Title, Abstract] Automatic and Cooperative Sleep Control Strategies for Power-saving in Radio-On-Demand WLANs Show AbstractHide Abstract This paper focuses on Radio-On-Demand (ROD) wireless LANs (WLANs) where the operating mode of Access Points (APs) is transited from ‘active’ to ‘sleep’ in case of no traffic to reduce wasteful power consumption. A sleep control strategy, which automatically decides the timing to transit AP’s mode, plays an important role in ROD WLANs. The frequent mode transitions are likely to increase waiting time or delay perceived by the user who attempts to communicate through ROD APs. In this paper, we investigate the tradeoff between power-saving effect and delay-reduction of an automatic sleep control by using trace data of WLAN traffic obtained in a real-world office environment. We also propose a cooperative sleep control method for large-scale WLANs, where the mode of APs is decided based on the deployment topology of APs and STAs. Numerical evaluation results show that, in a large-scale WLAN, significant amount of power can be saved by jointly employing the automatic and cooperative sleep control methods. [Schedule] TTA-GWRA [Category :: Sub-Category] 
Green IT and Communications
Abstracts « IEEE GreenTech 2013
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