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Author: search.filters.author.Chaisang, AditepSubject: search.filters.subject.Friis's transmission formula

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    Wireless Body Area Network Transmission Model Based on Measurement Data
    (2018-08-21)
    Chaisang, Aditep
    ;
    Promwong, Sathaporn
    Wireless body area network (BAN) technology is becoming an increasingly important part of the human body communication system and short range applications. Characteristic of ultra wideband impulse radio (UWB-IR) channel propagation is very important. The human body is more complex than other applications. Therefore, to understand the characteristics of the channel distribution on the human body is so important. This paper presents characteristic of channel propagation due to effect within human body and without human body for wireless applications based on measurement data. The template waveform is considered at the receiver side to maximize the SNR for evaluation. In this paper, the results are evaluated based on the extended Friis' transmission formula. This technique gives very accurate results and is very useful for the design and evaluation of UWB transmission for wireless medical applications, especially focusing on the effect of template waveform.
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    Optimization of HB-UWB Transmission Waveform for BAN Applications
    (2018-07-02)
    Chaisang, Aditep
    ;
    Promwong, Sathaporn
    The modern technology of wireless communications is rapidly developed and apply with short range communication networks around human body. The related research in these application has been investigating. In order to study the effect of human body in the high speed data rate technology, the patterns of ultra wideband for body area network has been studied. The measurement results have been measure and collected by vector network analyzer and analyze by using the equation of Friis. The proposed model is design for test and measure with human body in an indoor environment. The results show the usefulness information for a wireless communication for human body area network with ultra wideband.