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A Signal Adaptation Mechanism for Power Optimization of Wireless Adapters

Author

Listed:
  • Christos Bouras

    (Computer Technology Institute and Press “Diophantus”, Patras, Greece & Computer Engineering and Informatics Department, University of Patras, Patras, Greece)

  • Vaggelis Kapoulas

    (Computer Technology Institute and Press “Diophantus”, Patras, Greece & University of Patras, Patras, Greece)

  • Georgios Kioumourtzis

    (Center for Security Studies, Athens, Greece)

  • Kostas Stamos

    (TEI of Western Greece, Patras, Greece)

  • Nikos Stahopoulos

    (Computer Engineering and Informatics Department, University of Patras, Patras, Greece)

  • Nikos Tavoularis

    (Computer Engineering and Informatics Department, University of Patras, Patras, Greece)

Abstract

This manuscript introduces, implements and evaluates a feedback-based adaptation mechanism that adjusts the transmission power of a wireless card on commodity mobile devices. Main focus of this work is to minimize the power consumption by adjusting the transmission power of the wireless card, thus extending the battery life, while negative effects on connection quality are avoided. To achieve that, a mechanism that optimizes the power depending on the quality of the connection is presented, which measures the quality of the transmission and adjusts the transmission power, by utilizing an expanded array of metrics, for more accurate estimation. The mechanism has been implemented and tested on actual wireless adapters. In order to evaluate, fine-tune and improve the mechanism, a list of real environment experiments has been performed. The results indicate that power consumption can be significantly reduced for nodes that are either almost stationary or slowly moving, without any significant increase in packet loss.

Suggested Citation

  • Christos Bouras & Vaggelis Kapoulas & Georgios Kioumourtzis & Kostas Stamos & Nikos Stahopoulos & Nikos Tavoularis, 2015. "A Signal Adaptation Mechanism for Power Optimization of Wireless Adapters," International Journal of Wireless Networks and Broadband Technologies (IJWNBT), IGI Global, vol. 4(3), pages 48-72, July.
    • Handle: RePEc:igg:jwnbt0:v:4:y:2015:i:3:p:48-72
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