NDLI: Channel estimation and transmit power control in wireless body area networks

Content Provider	IET Digital Library
Author	Franco, Fabio Di Tachtatzis, Christos Atkinson, Robert C. Tinnirello, Ilenia Glover, Ian A.
Abstract	Wireless body area networks have recently received much attention because of their application to assisted living and remote patient monitoring. For these applications, energy minimisation is a critical issue since, in many cases, batteries cannot be easily replaced or recharged. Reducing energy expenditure by avoiding unnecessary high transmission power and minimising frame retransmissions is therefore crucial. In this study, a transmit power control scheme suitable for IEEE 802.15.6 networks operating in beacon mode with superframe boundaries is proposed. The transmission power is modulated, frame-by-frame, according to a run-time estimation of the channel conditions. Power measurements using the beacon frames are made periodically, providing reverse channel gain and an opportunistic fade margin, set on the basis of prior power fluctuations, is added. This approach allows tracking of the highly variable on-body to on-body propagation channel without the need to transmit additional probe frames. An experimental study based on test cases demonstrates the effectiveness of the scheme and compares its performance with alternative solutions presented in the literature.
Starting Page	11
Ending Page	19
Page Count	9
ISSN	20436386
Volume Number	5
e-ISSN	20436394
Issue Number	Issue 1, Feb (2015)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-wss/5/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-wss.2013.0070
Journal	IET Wireless Sensor Systems
Publisher Date	2014-12-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Beacon Mode Biological And Medical Control System Biomedical Communication Body Sensor Network Channel Estimation Communication Channel Equalisation And Identification Control Application in Radio And Radar Energy Expenditure Energy Minimisation Frame Retransmission Minimisation IEEE 802.15.6 Network Minimisation Optimisation Technique Patient Monitoring Power Control Transmission Power Fluctuations Power Measurement Remote Patient Monitoring Reverse Channel Gain Superframe Boundaries Telecommunication Control Wireless Body Area Network Wireless Channel Wireless Sensor Network
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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