Ultra wideband antenna diversity characterisation for offbody communications in an indoor environment uri icon

abstract

  • The Institution of Engineering and Technology 2014. In this study, spatial diversity is experimentally investigated for ultra wideband (UWB) off-body channels. Diveristy gain (DG) is calculated for various off- to on-body channels in different indoor locations and the impact of variation of interspacing between diversity branch antennas on mutual coupling, correlation and power imbalance is discussed. Effect on DG with respect to small variations of antenna on the body and DG behaviour with change of orientation between off-body transmitter and on-body diversity receiver are discussed. Also subject specific off-body diversity, uplink and downlink diversity are explored in this study. Result demonstrates that neither orientation nor subject changes or small variations in antenna position will affect the diversity performance severely. Comparison of off-body diversity shows an improvement of 50% with respect to on-body case; hence dominates the usefulness of UWB off-body diversity case in body-centric communications.

published proceedings

  • IET Microwaves, Antennas & Propagation

author list (cited authors)

  • Abbasi, Q. H., Rehman, M. U., Chattha, H. T., Qaraqe, K., Alomainy, A., Hao, Y., & Parini, C.

citation count

  • 12

complete list of authors

  • Abbasi, Qammer Hussain||Rehman, Masood Ur||Chattha, Hassan Tariq||Qaraqe, Khalid||Alomainy, Akram||Hao, Yang||Parini, Clive

publication date

  • November 2014