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    Marathon monitoring and safety using ad hoc networks
    (2011-05-02)
    Sirichai, Apatcha
    ;
    Pradisathaporn, Suriya
    ;
    Kaviya, Somkuan
    ;
    Wiriyaromp, Warrachai
    ;
    Fujii, Yusaku
    This paper proposes the use of modern communication technology that sports can be different, especially, in competition, which they are difficult to track (recording) because the rules of the competition and distance cause the effects of time recording errors in terms of accuracy and impartiality. The integrated vehicular ad hoc network (VANET) is recommended to accommodate such problems. The system is integrated by a 3G or 4G cellular wireless network. By using the general packet radio service (GPRS) to monitor closely to the athletes though the route and duration of competition, where the sports safety and clarity can also be monitored and realized.
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    Analytical treatment of parametric effects in a ring resonator
    (2011-05-02)
    Nawi, I. N.
    ;
    Hairi, H.
    ;
    Daud, S.
    ;
    Aziz, M. S.
    ;
    Ali, J.
    We propose two systems of a nano-waveguide to study the effects of ring resonator radii and coupling coefficient. The first proposed system is introduced as a single ring resonator. The change of the center wavelength from the output signal is monitored and analyzed. It shifts towards higher wavelength of the spectrum. The multistage ring resonator system consists of two micro and a nano ring resonators that can be integrated into a single system. The soliton pulse propagating within a Kerr type nonlinear medium is used to generate the large bandwidth signals. By using the suitable parameters, for instance, the input power of soliton, coupling coefficients, and ring radii, the short-wave and millimetre-wave output signals can simultaneously be generated in a multi-stage ring resonator (MMRR). We found that by using the MMRR, a desired response can be achieved over a broader portion of the spectrum compared to the single-stage ring resonator (SMRR) in which it is more preferable in applications.
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    Smart car with security camera for road accidence monitoring
    (2011-05-02)
    Sirichai, Poonsak
    ;
    Kaviya, Somkuan
    ;
    Fujii, Yusaku
    ;
    Yupapin, Preecha P.
    This research proposes the concept of security and prevention of road accidence using close circuit television (CCTV) monitoring system in conjunction with the vehicular ad hoc networks (VANET), which is integrated by a 3G or 4G cellular wireless networks. By using the CCTV cameras installed in taxi (car), the image is converted to wireless signal and transmitted via the radio system, in which the communication between cars and taxi call centre can be provided. Moreover, the security of image can be protected by using the signal encryption technique, in which the secret key is available only by authorized person, where finally the required image can be viewed when the crime is occurred. This is the security concept with the privacy violation and protection.
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    Hybrid surveillance system by using multi frequency bands enhancement
    (2010-09-01)
    Bunruangses, M.
    ;
    Sunat, K.
    ;
    Mitatha, S.
    ;
    Yupapin, P. P.
    We present a new design of a surveillance system via hybrid network in which is integrate wire, wireless less, Ad hoc network, vehicular Ad hoc network, sensor network, and cellular wireless network. We propose the dense wavelength division multiplexing wavelength enhancement, whereas the increasing in channel capacity and signal security can be provided. The increasing in number of channel can be obtained by the increasing in wavelength density, whereas the security is introduced by the specific wavelength filter, which is operated by the central operator. The optical communication wavelength enhancement is reviewed. The advantage is that the proposed system can be implemented and used incorporating with the existed communication link in hybrid wireless system, where the privacy can be provided, which is discussed in details. © 2010 Wiley Periodicals.
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    Novel VANET using a simultaneous wireless up-down link
    (2010-08-01)
    Mitatha, Somsak
    ;
    Bunruangses, Montree
    ;
    Sunat, Khamron
    ;
    Yupapin, P. P.
    We propose a new design of a Vehicular Ad Hoc network (VANET) system that uses the dense wavelength division multiplexing wavelength enhancement, whereas the increasing in channel capacity and signal security can be provided. The increasing in number of channel can be obtained by the increasing in wavelength density, while the security is introduced by the specific wavelength filter, which is operated by the central operator. The optical communication wavelength enhancement is reviewed. The advantage is that the proposed system can be implemented and used incorporating with the existed communication link in either wire/wireless system, where the privacy can be provided, which is discussed in detail. © 2010 Wiley Periodicals.