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Author: search.filters.author.Promwong, SathapornSubject: search.filters.subject.HB-UWB

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    Measurement and Investigation of HB-UWB Transmission Link for BAN System
    (2023-01-01)
    Sanguanpuak, Chanidaphar
    ;
    Promwong, Sathaporn
    ;
    Bunlaksananusorn, Chanin
    The short-range wireless multimedia is consider used a ultra wideband (UWB) technology for human body mobile and multimedia applications shows promise for wireless multi-media systems. Based on IEEE 802.15.6, wireless body area networks (BAN) require understanding the human body’s effects on channel characteristics. This paper presents how to evaluation of human body ulra-wideband (HB-UWB) transmission with line-of-sight and non-line-of-sight scenario. Our research aims to enhance HB-UWB channel propagation on the body media by employing with CLEAN algorithm to eliminate noise. This research leverage findings from previous studies to facilitate performance comparison. Furthermore, for analyze system performance using the CLEAN algorithm at different body positions. The measurement setup covers band the FCC regulated from 3.0 GHz to 11 GHz. It includes the tested with wideband antenna and vector network analyzer (VNA). HB-UWB characteristics are shows in the path loss and power delay profile are discussed as relevant parameters. This research very useful for design and evaluation of human body mobile network and wireless multimedia systems.
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    Distortion Analysis of the HB-UWB Transmission Waveform for WBAN Applications
    (2018-07-02)
    Sanguanpuak, Chanidaphar
    ;
    Bunlaksananusorn, Chanin
    ;
    Promwong, Sathaporn
    The body area network (BAN) is a wireless technology, which play an important role in very short range wireless communications and find a wide variety of applications such as WiMedia for relaying information gathered by biological sensors on body. The ultra wideband (UWB) technology is suitable for BAN system because of transmission by impulse radio and low power. However, signal distortion due to human body effect in human body-ultrawide band (HB-UWB) channel must be study. In this study, we evaluate HB-UWB channel which serious disturbed by the distortion. The distortion can cause extremely poor signal quality to wireless transmission channel even in free space because of the antenna characteristics and waveform distortion. Thus, the understanding of the effect from characterization of antenna and waveform effect is important. The measurement data of distortion analysis due the antenna and human body of HB-UWB for WBAN were presented in this research report. The receiver waveform template was present to maximize system signal to noise ration. The equation of Friis had been used to evaluate the results. The proposed method is practical for the HB-UWB evaluation, UWB antenna design, and provide more precision to identify the waveform distortion. The results can apply for the design of wireless medical devices which focus on the effect of human body.
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    A study of HB-UWB transfer function model for wireless body area network
    (2018-06-08)
    Promsrisawat, Pichayanan
    ;
    Promwong, Sathaporn
    Many research on wireless communication technologies for short range communication systems. The human body (HB) on ultra wideband (UWB) technology should be study. The wireless HB-UWB transmission waveform can be extremely distorted through a channel even for free-space transmission because of wideband antenna dispersion in HB-UWB system. Therefore, the understand of antenna characteristics with human body, which effects on waveform distortion, is necessary. This paper presents the waveform distortion due to human body in transfer function for wireless body area network (WBAN) applications based on HB-UWB measurement data. The template waveform is considered at the receiver side to maximize the signal to noise ratio (SNR) for evaluation. In this results are evaluate based on the extended Friis' transmission formula. This technique gives very accurate results and is very useful for the design and evaluation of HB-UWB transmission waveform for WBAN technology, especially focusing on the effect of template waveform and waveform distortion in HB-UWB transfer function.
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    Evaluation of HB-UWB transmission model for body area network
    (2016-09-06)
    Southisombath, Khamphoui
    ;
    Southisombath, Phouthong
    ;
    Promwong, Sathaporn
    Body area network (BAN) is becoming an increasingly important part of the wireless 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.