Title :
Investigation of channel spatial diversity for dual-link cooperative communications in WBAN
Author :
Liu, Lingfeng ; Bhatnagar, Vaibhav ; Robles, Cristina Garcia ; De Doncker, Philippe ; Vandendorpe, Luc ; Oestges, Claude
Author_Institution :
ICTEAM, Univ. catholique de Louvain (UCL), Louvain-la-Neuve, Belgium
Abstract :
In this work, we investigate the spatial diversity gain offered by on-body channels in indoor environments. Narrowband on-body channel measurements are conducted in a dual-link topology, to cover various scenarios with different link geometries and body movements. Cooperative dual-link communications with equal-power allocation scheme are evaluated based on the channel measurements. The simulated bit-error-rate (BER) of the cooperative dual-link is compared with the single-link performance. The results highlight the performance of the cooperative scheme for uncorrelated channels with significant fading variance and close pathloss level. In such cases, spatial diversity effectively improves the quality and BER of on-body communications.
Keywords :
body area networks; channel allocation; channel estimation; cooperative communication; diversity reception; error statistics; indoor radio; radio links; BER; WBAN; bit error rate; cooperative communications; dual-link topology; equal power allocation scheme; indoor environments; on-body channel measurements; spatial diversity; Antenna measurements; Biomedical measurements; Bit error rate; Diversity methods; Fading; Legged locomotion; Signal to noise ratio;
Conference_Titel :
Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4577-0250-1
