Wi-Fi Direct 망을 위한 부하량 예측 기반의 전력 절감 기법
Adaptive Power Saving Protocol Based on Traffic Estimation for Wi-Fi Direct Networks
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초록
Wi-Fi Direct allows battery powered mobile devices to form a wireless ad hoc network. Since one member of the network called Group Owner (GO) takes the role of managing the network, the network lifetime is mainly affected by the energy efficiency of GO. Hence, Wi-Fi Direct defines power saving schemes that allow GO to save the energy by turning off its radio interface during the periods called absence periods. However, the Wi-Fi Direct specification does not specify how to set parameters (denoted by PS parameters) determining the schedule of the absence periods. In this paper, we therefore propose a novel traffic-aware power saving scheme for Wi-Fi Direct networks. In particular, the proposed scheme estimates the application-level traffic load and adaptively tunes the PS parameters according to the estimated value.
Abstract
Wi-Fi Direct allows battery powered mobile devices to form a wireless ad hoc network. Since one member of the network called Group Owner (GO) takes the role of managing the network, the network lifetime is mainly affected by the energy efficiency of GO. Hence, Wi-Fi Direct defines power saving schemes that allow GO to save the energy by turning off its radio interface during the periods called absence periods. However, the Wi-Fi Direct specification does not specify how to set parameters (denoted by PS parameters) determining the schedule of the absence periods. In this paper, we therefore propose a novel traffic-aware power saving scheme for Wi-Fi Direct networks. In particular, the proposed scheme estimates the application-level traffic load and adaptively tunes the PS parameters according to the estimated value.
참고문헌 (5)
- Wi-Fi Alliance, P2P Technical Group, "Wi-Fi Peer-to-Peer (P2P) Technical Specification v1.1", ~ (2010)
- D. Camps-Mur, "Device to device communications with wifi direct : overview and experimentation", IEEE Wireless Communications, 20(3), pp.96~104 (2012)
- 서윤, "에너지 효율적인 Wi-Fi Direct를 위한 동적 전력 관리 기법", 한국통신학회논문지B, 38(8), pp.663~671 (2013), 한국통신학회
- Q. Chen, "Overhaul of IEEE 802.11 modeling and simulation in NS-2", Proceedings of The 10th ACM International Symposium on Modeling, Analysis and Sumlation of Wireless and Mobile Systems (2007)