What is it about?
Our experimental findings from a testbed show that the packet size and packet rate of the application flow have the greatest impact on application- level energy usage, compared to transmission power and radio frequency channel width for IEEE 8021.11 (WiFi).
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Why is it important?
We find that, as might be expected, transmission power and channel width do effect performance, such as throughput and loss. However, they have relatively little impact on application-level energy usage. Our key observation is that we can gain a better appreciation of energy usage by considering the amortisation of energy usage across the system as a whole.
Perspectives
There is great potential for application-level (self-)adaptation to achieve greater energy efficiencies than is currently achieved for 802.11 (WiFi). By adjusting packet flow construction and packet transmission, energy efficiency gains could be possible on even on old/legacy hardware by using an adaptive application.
Prof Saleem N Bhatti
University of St Andrews
Read the Original
This page is a summary of: Towards energy-awareness in managing wireless LAN applications, April 2012, Institute of Electrical & Electronics Engineers (IEEE),
DOI: 10.1109/noms.2012.6211930.
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