Title :
Improving Power Savings by Using Adaptive Initial-Sleep Window in IEEE802.16e
Author :
Cho, Seungkwon ; Kim, Youngil
Author_Institution :
Div. of Mobile Telecommun. Res., Electron. & Telecommun. Res. Inst., Daejeon
Abstract :
In this paper, we propose an adaptive initial-sleep window scheme applicable to both power saving class of type I and type II in IEEE802.16e. Based on the estimated inter-arrival time of packet burst, the presented scheme adaptively updates the length of the initial-sleep window in order to maximize power-saving effect while trying to minimize packet buffering delay. The computer simulations are carried out for Web browsing and streaming video, the most typical BE service in power saving class of type I and RT-VR service in power saving class of type II, respectively. The simulations show that the proposed scheme improves the power-saving effect in terms of the awake rate and the normalized active time while suppressing the increase in the mean packet delay.
Keywords :
Internet; WiMax; mobile computing; mobile radio; video streaming; IEEE802.16e; RT-VR service; Web browsing; adaptive initial-sleep window scheme; packet buffering delay; streaming video; Base stations; Communication system traffic control; Computational modeling; Computer simulation; Costs; Delay effects; Delay estimation; Streaming media; Wireless networks;
Conference_Titel :
Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th
Conference_Location :
Dublin
Print_ISBN :
1-4244-0266-2
DOI :
10.1109/VETECS.2007.277