Use this URL to cite or link to this record in EThOS:
Title: Multi-hop and channel modelling for wireless body area networks at 60 GHz
Author: Li, Xiao
Awarding Body: University of Birmingham
Current Institution: University of Birmingham
Date of Award: 2015
Availability of Full Text:
Access from EThOS:
Access from Institution:
This thesis presents work on antennas and propagation for WBANs at 60 GHz. First, a compact, wearable Vivaldi antenna and Vivaldi antenna array covering the whole unlicensed band from 57 to 64 GHz are proposed to overcome the shadowing due to human movements. Second, multi-hop channels for on-body communication at 60 GHz are investigated through applying the proposed antennas, and it is found that multi-hop wireless network adaption can increase reliability when the separation between sensors exceeds 40 cm compared to single-hop. Radiation pattern diversity is selected among different diversity techniques for providing stable links for 60 GHz WBANs. Results show that radiation pattern diversity enlarges the signal coverage area on the human body, which compensates for the narrow beamwidth antenna, thus more stable links can be established. Finally, a representative channel model for 60 GHz on-body network with an appropriate power control method is presented. With this model and power control method, it has been proved in this thesis that a multi-hop method for on-body communication at 60 GHz is feasible to establish a stable network for different applications.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TK Electrical engineering. Electronics Nuclear engineering