Reference : Analysis of an Energy-Efficient MAC Protocol Based on Polling for IEEE 802.11 WLAN
Scientific congresses, symposiums and conference proceedings : Paper published in a book
Engineering, computing & technology : Computer science
Analysis of an Energy-Efficient MAC Protocol Based on Polling for IEEE 802.11 WLAN
Palacios, Raul []
Mekonnen, Gedlu []
Alonso-Zarate, Jesus []
Kliazovich, Dzmitry mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Granelli, Fabrizio []
IEEE International Conference on Communications (ICC), London, UK, June 2015
IEEE International Conference on Communications (ICC)
June 2015
[en] Energy-efficient ; 802.11 ; WiFi
[en] This paper analyzes the performance of a duty-cycled polling-based access mechanism that exploits the Transmission Opportunity Power Save Mode (TXOP PSM) defined in the IEEE 802.11ac to improve the energy efficiency of Wireless Local Area Networks (WLANs) based on the IEEE 802.11. The basic idea behind the proposed approach, named GreenPoll, is to enable contention free periods, based on polling with beacons, during which wireless stations can save energy by turning off their radio transceivers after exchanging data with the access point. The closed expression of energy efficiency of GreenPoll is formulated in this paper and is used to evaluate the performance of GreenPoll considering important parameters like the traffic load, packet length, data rate, and number of stations in the network. Both analytical and simulation results show the high energy efficiency of GreenPoll with gains of up to 330% and 110% when compared to the legacy Distributed Coordination Function (DCF) and the Point Coordination Function (PCF) defined in the IEEE 802.11, respectively.

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