Numerical analysis of posture variation effect on the ultra wideband on-body radio propagation channels using advanced modelling techniques

The paper presents radio propagation study in wireless body area networks using a simulation tool based on the parallel finite-difference time-domain technique. This technique is well suited to model the radio propagation around complex, inhomogeneous objects such as the human body. The impact of different postures in on-body radio channel was studied. Simulations were performed at the frequency of 3–10 GHz considering a typical hospital environment and were validated by on-site measurements with reasonably good agreement.