Analytical Modeling of Saturation Throughput in Power Save Mode of an IEEE 802.11 Infrastructure WLAN

We consider a single station (STA) in the Power Save Mode (PSM) of an IEEE 802.11 infrastructure WLAN. This STA is assumed to be carrying uplink and downlink traffic via the access point (AP). We assume that the transmission queues of the AP and the STA are saturated, i.e., the AP and the STA always have at least one packet to send. For this scenario, it is observed that uplink and downlink throughputs achieved are different. The reason behind the difference is the long term attempt rates of the STA and the AP due to the PSM protocol. In this paper we first obtain the the long term attempt rates of the STA and the AP and using these, we obtain the saturation throughputs of the AP and the STA. We provide a validation of analytical results using the NS-2 simulator.

[1]  Ronald W. Wolff,et al.  Stochastic Modeling and the Theory of Queues , 1989 .

[2]  Jun Li,et al.  Scheduled PSM for Minimizing Energy in Wireless LANs , 2007, 2007 IEEE International Conference on Network Protocols.

[3]  Songqing Chen,et al.  PSM-throttling: Minimizing Energy Consumption for Bulk Data Communications in WLANs , 2007, 2007 IEEE International Conference on Network Protocols.

[4]  Arne A. Nilsson,et al.  An M/G/1 queue with bulk service model for power management in wireless LANs , 2005, PE-WASUN '05.

[5]  Hari Balakrishnan,et al.  Minimizing Energy for Wireless Web Access with Bounded Slowdown , 2005, Wirel. Networks.

[6]  Bong Dae Choi,et al.  Performance analysis of power save mode in IEEE 802.11 infrastructure wireless local area network , 2009 .

[7]  A. Kumar,et al.  Analytical models for energy consumption in infrastructure WLAN STAs carrying TCP traffic , 2010, 2010 Second International Conference on COMmunication Systems and NETworks (COMSNETS 2010).

[8]  Finkel,et al.  Brief review: Stochastic Modeling and the Theory of Queues by Ronald W. Wolfe (Prentice-Hall, 1989) , 1992, PERV.

[9]  Kang G. Shin,et al.  Smart power-saving mode for IEEE 802.11 wireless LANs , 2005, Proceedings IEEE 24th Annual Joint Conference of the IEEE Computer and Communications Societies..

[10]  F. Richard Yu,et al.  IEEE 802.11 DCF PSM Model and a Novel Downlink Access Scheme , 2008, 2008 IEEE Wireless Communications and Networking Conference.

[11]  Giorgio Ventre,et al.  Network Simulator NS2 , 2008 .

[12]  Eitan Altman,et al.  New Insights From a Fixed-Point Analysis of Single Cell IEEE 802.11 WLANs , 2007, IEEE/ACM Transactions on Networking.

[13]  Giuseppe Anastasi,et al.  Saving Energy in Wi-Fi Hotspots through 802.11 PSM: an Analytical Model , 2004 .

[14]  Daniele Miorandi,et al.  New insights from a fixed point analysis of single cell IEEE 802.11 WLANs , 2005, INFOCOM 2005.

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