Conference Paper

Application Level Energy and Performance Measurements in a Wireless LAN

Univ. of St. Andrews, St. Andrews, UK
DOI: 10.1109/GreenCom.2011.26 Conference: Green Computing and Communications (GreenCom), 2011 IEEE/ACM International Conference on
Source: IEEE Xplore

ABSTRACT We present an experimental evaluation of energy usage and performance in a wireless LAN cell based on a test bed using the 5 GHz ISM band for 802.11a and 802.11n. We have taken an application-level approach, by varying the packet size and transmission rate at the protocol level and evaluating energy usage across a range of application transmission rates using both large and small packet sizes. We have observed that both the application's transmission rate and the packet size have an impact on energy efficiency for transmission in our test bed. We also included in our experiments evaluation of the energy efficiency of emulations of YouTube and Skype flows, and a comparison with Ethernet transmissions.

  • Source
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: We demonstrate that in a future converged network scenario, it may be beneficial to allow selection of 802.11 variant based on application requirements. We analyse traces from the campus network from the University of Twente, comprising ∼5000 users. We have evaluated a performance envelope derived from testbed experiments for individual IEEE 802.11 variants and compare these with the traffic patterns from the campus network. From our comparison, we find that specific IEEE 802.11 variants (e.g. 802.11g or 802.11n) may be better suited to specific applications, such as video streaming, rather than using a single WLAN standard for all traffic.
    ICNC 2013 - IEEE Intl. Conf. Computing, Networking and Communications; 01/2013
  • Source
    [Show abstract] [Hide abstract]
    ABSTRACT: Improving the energy efficiency of the ICT sector is becoming an ambitious challenge for industries and research communities alike. Understanding how the energy is consumed in each part of an ICT system becomes fundamental in order to minimize the overall energy consumed by the system itself. In this paper, we propose an experimentally-driven approach to (i) characterize typical wireless access network gateways from an energy consumption standpoint and (ii) develop simple and accurate power consumption models for such gateways. In this work we focused our attention on the monitoring, measurement and analysis of the energy consumption patterns of WiFi and WiMAX gateways. Our measurements show that the power consumption of such gateways exhibits a linear dependence on the traffic until a saturation point is reached.
    Computer Networks 07/2012; 56(10):2506–2521. · 1.23 Impact Factor

Full-text (2 Sources)

Available from
May 23, 2014