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Link-State-Estimation-Based Transmission Power Control in Wireless Body Area Networks

Authors
Kim, SeungkuEom, Doo-Seop
Issue Date
7월-2014
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Healthcare; link-state estimation; transmission power control; wireless body area network (WBAN)
Citation
IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS, v.18, no.4, pp.1294 - 1302
Indexed
SCIE
SCOPUS
Journal Title
IEEE JOURNAL OF BIOMEDICAL AND HEALTH INFORMATICS
Volume
18
Number
4
Start Page
1294
End Page
1302
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/98093
DOI
10.1109/JBHI.2013.2282864
ISSN
2168-2194
Abstract
This paper presents a novel transmission power control protocol to extend the lifetime of sensor nodes and to increase the link reliability in wireless body area networks (WBANs). We first experimentally investigate the properties of the link states using the received signal strength indicator (RSSI). We then propose a practical transmission power control protocol based on both short-and long-term link-state estimations. Both the short- and long-term link-state estimations enable the transceiver to adapt the transmission power level and target the RSSI threshold range, respectively, to simultaneously satisfy the requirements of energy efficiency and link reliability. Finally, the performance of the proposed protocol is experimentally evaluated in two experimental scenarios-body posture change and dynamic body motion-and compared with the typical WBAN transmission power control protocols, a real-time reactive scheme, and a dynamic postural position inference mechanism. From the experimental results, it is found that the proposed protocol increases the lifetime of the sensor nodes by a maximum of 9.86% and enhances the link reliability by reducing the packet loss by a maximum of 3.02%.
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