Article (Scientific journals)
A low-power wearable dual-band wireless body area network system: Development and experimental evaluation
Thotahewa, K. M. S.; Redouté, Jean-Michel; Yuce, M. R.
2014In IEEE Transactions on Microwave Theory and Techniques, 62 (11), p. 2802-2811
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Keywords :
Impulse radio ultra-wideband (IR-UWB); Dual-band; Experimental evaluation; Impulse radio ultra-wideband; Low Power; Medium access control(MAC); Narrow bands; Wireless body area network
Abstract :
[en] Wireless body area network (WBAN) applications benefit extensively from the advantages offered by unique features of ultra-wideband (UWB) wireless communication, such as high data rate, low power consumption, and simple transmitter design. A major disadvantage in using UWB for WBAN applications is the complexities introduced by UWB receivers, such as high power consumption, poor receiver performance due to low sensitivity, and complex hardware implementation. This paper presents hardware implementation of a new communication system, where UWB is used for high data-rate transmission from sensor nodes and a 433-MHz industrial, scientific, and medical (ISM) band receiver is used for receiving low data-rate control messages at the sensor nodes. A full network system for WBAN applications has been implemented including a unique medium access control protocol. The proposed WBAN system is designed to dynamically control the pulses per bit value used for the UWB data communication using control messages received via the narrowband feedback link (i.e., the 433-MHz ISM link). This leads to dynamic bit error rate (BER) and power control at the sensor nodes, which improves the reliability of communication and power efficiency of sensor nodes under dynamic channel conditions. The performance of the system is evaluated in terms of BER, sensor initialization delay, and power consumption. This novel dual-band architecture utilizes the unique advantages offered by UWB communication and narrowband technology to enable high data rate, low-complexity hardware design, low power consumption, and small form factor for WBAN sensor systems. © 2014 IEEE.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Thotahewa, K. M. S.;  School of Electrical and Computer Systems Engineering, Monash University, Melbourne, Vic, 3800, Australia
Redouté, Jean-Michel  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes microélectroniques intégrés
Yuce, M. R.;  School of Electrical and Computer Systems Engineering, Monash University, Melbourne, Vic, 3800, Australia
Language :
English
Title :
A low-power wearable dual-band wireless body area network system: Development and experimental evaluation
Publication date :
2014
Journal title :
IEEE Transactions on Microwave Theory and Techniques
ISSN :
0018-9480
eISSN :
1557-9670
Publisher :
Institute of Electrical and Electronics Engineers Inc.
Volume :
62
Issue :
11
Pages :
2802-2811
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 25 September 2018

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