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Author Jie Ding ♦ Dutkiewicz, E. ♦ Xiaojing Huang ♦ Gengfa Fang
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©2013
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Torso ♦ Energy consumption ♦ Wireless sensor networks ♦ Relays ♦ Equations ♦ Signal to noise ratio ♦ Ultra wideband technology
Abstract In this paper, an energy-efficient cooperative relay selection scheme is investigated for ultra-wideband (UWB) based wireless body area networks (WBANs). With a realistic nonlinear energy consumption model, the energy consumption for single-relay cooperation is established and the optimal power allocation for cooperation is derived accordingly to minimize the total energy consumption at a given relay location. Afterwards, an energy efficient relay selection criterion is described in detail. Simulation results verify the suitability of the criterion and show that, with the same desired spectral efficiency (SE), direct transmission is preferable for energy saving when the transmitter and receiver are located on the same side of the human body. However, at a suitable relay location and with large transmission distance, cooperative transmission can achieve a significant improvement on energy efficiency compared with direct transmission when the transmitter and receiver are located on the different sides of the human body.
Description Author affiliation: Dept. of Eng., Macquarie Univ., Sydney, NSW, Australia (Jie Ding; Dutkiewicz, E.; Gengfa Fang) || ICT Centre, CSIRO, Epping, NSW, Australia (Xiaojing Huang)
ISBN 9781479909698
ISSN 21626588
Educational Role Student ♦ Teacher
Age Range above 22 year
Educational Use Research ♦ Reading
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2013-09-15
Publisher Place Australia
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Size (in Bytes) 200.78 kB
Page Count 6
Starting Page 97
Ending Page 102


Source: IEEE Xplore Digital Library