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The ultra wideband (UWB) radio signals are known for their good time resolution enabling implementation of accurate localization and tracking. The recent appearance of commercial UWB transceivers in masses on the market has boosted the interest towards this technology and facilitated its use not just for research, but also for business. In this paper we focus on the problem of UWB-based wireless indoor...
This article examines body-to-body ultra wideband (UWB) wireless body area network signal propagation. The results are based on static frequency domain measurements conducted in an anechoic chamber in the frequency band of 2 – 8 GHz using a vector network analyzer. Two test persons both equipped with two on-body antennas were involved. Two planar UWB antenna types were used: dipole and double loop...
This article presents dynamic on-body radio channel modelling for ultra wideband (UWB) wireless body area network communication. The work is based on frequency domain measurements with a vector network analyzer in an anechoic chamber at a 2–8 GHz frequency band. Two planar UWB antennas were used (dipole and double loop) and they were attached in total eight on-body locations. First, the mean values,...
Advantages of remote health monitoring are incontestable: prolonging the patient's possibility to stay at home by monitoring the health condition remotely, the quality of patient's life is improved as well as healthcare costs are significantly reduced. Parkinson's disease is one example, for which some wireless monitoring systems have been presented recently. However, concrete performance evaluations...
In this paper, the performances of different kinds of IEEE802.15.4a receivers, which are suitable for the modulation methods and their combinations defined by the standard, are compared using two dissimilar channel models for wireless body area networks. The reference channel model is the one defined by the IEEE802.15.6 standardization group, and the other one is based on the channel measurements...
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