An IEEE 802.11 energy efficient mechanism for continuous media applications

Bernardo, Vitor; Pascoal Curado, Marilia; Braun, Torsten (2014). An IEEE 802.11 energy efficient mechanism for continuous media applications. Sustainable Computing: Informatics and Systems, 4(2), 106 - 117. Elsevier 10.1016/j.suscom.2014.04.001

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The widespread deployment of wireless mobile communications enables an almost permanent usage of portable devices, which imposes high demands on the battery of these devices. Indeed, battery lifetime is becoming one the most critical factors on the end-users satisfaction when using wireless communications. In this work, the optimized power save algorithm for continuous media applications (OPAMA) is proposed, aiming at enhancing the energy efficiency on end-users devices. By combining the application specific requirements with data aggregation techniques, {OPAMA} improves the standard {IEEE} 802.11 legacy Power Save Mode (PSM) performance. The algorithm uses the feedback on the end-user expected quality to establish a proper tradeoff between energy consumption and application performance. {OPAMA} was assessed in the OMNeT++ simulator, using real traces of variable bitrate video streaming applications, and in a real testbed employing a novel methodology intended to perform an accurate evaluation concerning video Quality of Experience (QoE) perceived by the end-users. The results revealed the {OPAMA} capability to enhance energy efficiency without degrading the end-user observed QoE, achieving savings up to 44 when compared with the {IEEE} 802.11 legacy PSM.

Item Type:

Journal Article (Original Article)


08 Faculty of Science > Institute of Computer Science (INF) > Communication and Distributed Systems (CDS)
08 Faculty of Science > Institute of Computer Science (INF)

UniBE Contributor:

Pascoal Curado, Marilia, Braun, Torsten


000 Computer science, knowledge & systems
500 Science > 510 Mathematics








Dimitrios Xenakis

Date Deposited:

13 Jun 2014 16:41

Last Modified:

05 Dec 2022 14:35

Publisher DOI:


Additional Information:

Special Issue on Selected papers from EE-LSDS2013 Conference

Uncontrolled Keywords:

Quality of Experience




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