Peer-Reviewed Journal Details
Mandatory Fields
Fang, M;Malone, D
2010
April
Health Physics
EXPERIMENTAL VERIFICATION OF A RADIOFREQUENCY POWER MODEL FOR WI-FI TECHNOLOGY
Published
2 ()
Optional Fields
DISTRIBUTED COORDINATION FUNCTION EXPOSURE IMPACT
98
574
583
When assessing the power emitted from a Wi-Fi network, it has been observed that these networks operate at a relatively low duty cycle. In this paper, we extend a recently introduced model of emitted power in Wi-Fi networks to cover conditions where devices do not always have packets to transmit. We present experimental results to validate the original model and its extension by developing approximate, but practical, testbed measurement techniques. The accuracy of the models is confirmed, with small relative errors: less than 5-10%. Moreover, we confirm that the greatest power is emitted when the network is saturated with traffic. Using this, we give a simple technique to quickly estimate power output based on traffic levels and give examples showing how this might be used in practice to predict current or future power output from a Wi-Fi network. Health Phys. 98(4):574-583; 2010
PHILADELPHIA
0017-9078
10.1097/HP.0b013e3181c34e2b
Grant Details