Suwan, Supakorn

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Suwan, Supakorn
Alternative Name
Suwan, S.
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Email
supakorn.su@kmitl.ac.th

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    Item type:Publication,
    Evaluation of WUWB Transmission with LOS and NLOS for Smart Home
    (2018-07-02)
    Chamchoy, Monchai
    ;
    Suwan, Supakorn
    ;
    Airphaiboon, Surapan
    ;
    Promwong, Sathaporn
    Wireless ultra-wideband communications technology (WUWB) is a fast popular technology because many unique attractive features that promotes development about wireless communications, networking. WUWB has so high elevated and also allows the force spectral intensity to be so few, and the force limits on UWB are being severely limited by the regulatory bodies. Technology offers plenty advantages, particularly about terms of so high data transmission rates which are good above those probable with currently deployed technologies. The optimization of data transmission is to use multiantenna WUWB method. So, as an alternative, a multiantenna can be used to reduce the error rate as well as improve the quality and capability of wireless transmission by directing, with an aim to adventure the spatial diversity in the channel. The benefits of such a system can be found in independent relationships. This paper presents the spatial effects about transmitter/receiver relations for multiantenna UWB systems under line-of-sight (LOS) and non-line-of-sight (NLOS) situation. A comparison results exhibit that the relations reduce as the antenna length expand for the scenario. In the example of a NLOS situation, the relations does not rely on the spacing.
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    Delay Time and Power Distribution of HB-UWB Transmission Based on Measurement Data
    (2019-01-10)
    Suwan, Supakorn
    ;
    Airphaiboon, Surapan
    ;
    Promwong, Sathaporn
    Waveform distortion and delay time in human body-ultra wideband (HB-UWB) transmission waveform is very important parameters for in wireless impulse radio system. In this research, we investigated of human body effects and antennas in HB-UWB channel based on the based on measurement data work done in an indoor environment. The characteristics of the transceiver HB-UWB, which combine to form the signal and the effect signal receiver to get above the frequency band 3 GHz to 11 GHz important factors such as the distribution of power, distortion and delay spread. The RMS delay expand due to the human body shadowing and antennas are represent.