EURASIP Journal on Wireless Communications and Networking 
Volume 2008 (2008), Article ID 572636, 11 pages
doi:10.1155/2008/572636
Research Article

Temperature-Aware Routing for Telemedicine Applications in Embedded Biomedical Sensor Networks

Daisuke Takahashi,1 Yang Xiao,1 Fei Hu,2 Jiming Chen,3 and Youxian Sun3

1Department of Computer Science, The University of Alabama, Tuscaloosa 35487, AL, USA
2Computer Engineering Department, Rochester Institute of Technology, Rochester 14623, NY, USA
3State Key Laboratory of Industrial Control Technology, Institute of Industrial Process Control, Zhejiang University, Hangzhou 310027, China

Received 13 April 2007; Revised 3 November 2007; Accepted 2 December 2007

Recommended by Hui Chen

Abstract

Biomedical sensors, called invivo sensors, are implanted in human bodies, and cause some harmful effects on surrounding body tissues. Particularly, temperature rise of the invivo sensors is dangerous for surrounding tissues, and a high temperature may damage them from a long term monitoring. In this paper, we propose a thermal-aware routing algorithm, called least total-route-temperature (LTRT) protocol, in which nodes temperatures are converted into graph weights, and minimum temperature routes are obtained. Furthermore, we provide an extensive simulation evaluation for comparing several other related schemes. Simulation results show the advantages of the proposed scheme.