Title :
Ultra wideband antenna diversity techniques for on/off-body radio channel characterisation
Author :
Abbasi, Qammer H. ; Alomainy, Akram ; Hao, Yang
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Queen Mary Univ. of London, London, UK
Abstract :
Diversity is powerful tool for combat fading. This paper presents experimental investigations and comparison of ultra wideband antenna diversity technique for on-body and off-body radio propagation channels. Diversity gain (DG) is calculated for five different channels namely: Access point (AP)/belt-to-head, AP/belt-to-chest, AP/belt-to-wrist, AP/belt-to-ankle and AP/belt-to-back with the subject performing realistic movements of different nature in an indoor environment. Results showed that almost 50% improvement in DG is obtained for off-body case as compared to on-body case, which shows the usefulness of UWB off-body diversity for body centric wireless communications.
Keywords :
biomedical communication; diversity reception; fading channels; radiowave propagation; ultra wideband antennas; UWB off-body diversity; access point; body centric wireless communications; diversity gain; off-body radiopropagation channels; on-off-body radio channel characterisation; ultrawideband antenna diversity techniques; Antenna measurements; Diversity reception; Frequency measurement; Indoor environments; Ultra wideband antennas; Wireless communication;
Conference_Titel :
Antenna Technology (iWAT), 2012 IEEE International Workshop on
Conference_Location :
Tucson, AZ
Print_ISBN :
978-1-4673-0036-0
DOI :
10.1109/IWAT.2012.6178649
