论文信息 - An energy-efficiency MAC-layer relay method for IEEE 802.11 infrastructure wireless LANs

An energy-efficiency MAC-layer relay method for IEEE 802.11 infrastructure wireless LANs

In this paper, we introduce Energy-Efficiency Cut-Through (ECTP) protocol to improve energy-efficiency in infrastructure wireless LANs. We study a combined medium access and next-hop address lookup without the intervention of the host protocol stack, and introduce a proper relay node to let a pair of communication ends adopt a higher data rate according to the path loss and the channel condition at transmission time. Evaluation results show that the proposed protocol and its degraded method provide significant improvements on energy-efficiency, and remarkably enhance overall system performance.

Jain-Shing Liu

[1] A. Girotra,et al. Performance Analysis of the IEEE 802 . 11 Distributed Coordination Function , 2005 .

[2] Paramvir Bahl,et al. A rate-adaptive MAC protocol for multi-Hop wireless networks , 2001, MobiCom '01.

[3] Seung-Jun Yu,et al. Wireless Communication , 1916, Nature.

[4] A. M. Abdullah,et al. Wireless lan medium access control (mac) and physical layer (phy) specifications , 1997 .

[5] Leo Monteban,et al. WaveLAN®-II: A high-performance wireless LAN for the unlicensed band , 1997, Bell Labs Technical Journal.

[6] Yang-Han Lee,et al. Providing multiple data rates in infrastructure wireless networks , 2001, GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270).

[7] Theodore S. Rappaport,et al. Wireless communications - principles and practice , 1996 .

[8] Edward W. Knightly,et al. Opportunistic media access for multirate ad hoc networks , 2002, MobiCom '02.