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Using Game Approach to Control Bioeffects for Wireless Body Sensor Networks

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2 Author(s)
Hongliang Ren ; Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Hong Kong ; Meng, M.Q.-H.

This paper first investigates the bioeffects caused by radiofrequency transmission of sensor node, including thermal effects and athermal effects. The bioeffects model is studied in both near-field and far-field, in relation to specific absorption rate (SAR). A bioeffects metric is then proposed to evaluate the adverse biological effects. After identifying the factors that can reduce the adverse health effects in the communication system we propose a game theoretic model of distributed power control to analysis bioeffects for the system. The bioeffects cost function is introduced to the network utility as a metric to evaluate the performance of wireless body sensor networks in terms of health effect consideration. The two main contributions of this work are that a normalized bioeffects metric, equivalent coefficient-of-absorption-and-bioeffects (CAB), is derived to evaluate and design the communication protocols, and a novel game theoretic power control model is employed to balance the bioeffects for CDMA-based wireless body sensor networks.

Published in:

Robotics and Biomimetics, 2006. ROBIO '06. IEEE International Conference on

Date of Conference:

17-20 Dec. 2006