Mohammad Sadegh Mohammadi




Aarhus Universitet


Enabling Reliable and Efficient Communications in Body-Centric Wireless Networks and Small Devices for the Internet of Things
PhD defense, Wednesday 15 March 2017. Mohammad Sadegh Mohammadi
Configuration of wireless nodes inside, on, or in the vicinity of human body forms a body area network (WBAN). Applications of WBANs include medical implantable or wearable nodes for measuring physiological signals or performing therapeutic treatments, dynamic measurements in the musculoskeletal system for scientific or sport research, fitness, or games, or everyday personal care applications. Reliability of wireless links plays a crucial role in all applications of WBANs. Nonetheless, several factors that are unique to WBANs compared to other traditionally recognized wireless networks pose a major challenge to achieve reliable communications. Indeed, achieving reliable communications in WBANs requires optimal efficiency with low complexity. Any potential solution should rely on extremely limited energy resources to defeat a volatile channel corrupted with noise, harsh fading, and body-dependent reflective, dispersive, and refractive random effects.
The problem has been investigated from different points of view considering different layers of the communication protocol stack and multiple techniques have been deployed that rely on the theory of statistical signal processing. The proposed schemes include PHY/MAC optimization, sophisticated coding and error recovery mechanisms, and a novel innovative sampling framework, to achieve optimal transmission efficiency at the transmitter nodes. Maintaining a low computational demand at the transmitter nodes is a key property in all the proposed techniques.
The PhD degree was completed at the Department of Engineering, Aarhus University and the Department of Electronic Engineering, Macquarie University, Sydney.
This résumé was prepared by the PhD student.
Time: PhD defense, Wednesday 15 March 2017 at 13:00.
Place: building 5125, room 235, Finlandsgade 22, 8200 Aarhus N
Title of dissertation: Reliable Communications in Wireless Body Area Networks
Contact information: Mohammad Sadegh Mohammadi, e-mail:, Tel: +61 402230504
Members of the assessment committee:
Professor Eduard A. Jorswieck, Institut für Nachrichtentechnik, Fakultät für Elektrotechnik und Informationstechnik, Technische Universität Dresden, Germany.
Professor Athanasios V. Vasilakos, Department of Computer Science, Electrical and Space Engineering, Luleå University of Technology, Sweden.
Associate Professor Stefan Hallerstede, Department of Engineering, Aarhus University (chair).
Main supervisor:
Associate Professor Qi Zhang, Department of Engineering, Aarhus University
Iain Collings (Macquarie University)
Language: The PhD dissertation will be defended in English
The defense is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST, Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.