Field trial and performance of land mobile message communications using Ku-band satellite

Fumio Takahata, Yoh Hoshino, Toshiaki Baba, Hiromi Komatsu, Masato Okuda

    Research output: Contribution to journalArticle

    Abstract

    A field trial was conducted to evaluate the technical performance of land mobile message communication in different environments. The OmniTRACS system and the Ku-band JCSAT satellite were utilized as the mobile communications system and the satellite, respectively. The trial took place in September 1990 at different areas in Japan. Data collected correspond to about 65 hours of operation, during which a large number of messages were sent via the satellite. Two land mobile terminals operated simultaneously, each terminal having a function of generating messages automatically which simulates a large volume of traffic corresponding to about 50 terminals. Thus, the system was evaluated under the condition that 100 mobile terminals were in operation. Obtained data have been analyzed with a particular focus on the message transmission correlating with actual environments. The analysis was done by classifying environments into five categories: overall condition, type of roads, terrain, areas and weather conditions. The average transmission count per message experienced under all conditions is equal to 1.432 for forward messages transmitted from the hub station to mobiles, and 1.157 for return messages transmitted from mobiles to the hub station. With respect to the classification by the type of roads, for example it becomes obvious that the performance is generally good except along roads of North-South orientation through dense urban areas. It is concluded that the message communications from/to mobiles are feasible in a wide range of environments, with the performance of success essentially depending on the visibility of satellite.

    Original languageEnglish
    Pages (from-to)120-130
    Number of pages11
    JournalIEICE Transactions on Communications
    VolumeE76-B
    Issue number2
    Publication statusPublished - 1993 Feb

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    Satellites
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    Mobile telecommunication systems
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    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Electrical and Electronic Engineering

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    Field trial and performance of land mobile message communications using Ku-band satellite. / Takahata, Fumio; Hoshino, Yoh; Baba, Toshiaki; Komatsu, Hiromi; Okuda, Masato.

    In: IEICE Transactions on Communications, Vol. E76-B, No. 2, 02.1993, p. 120-130.

    Research output: Contribution to journalArticle

    Takahata, Fumio ; Hoshino, Yoh ; Baba, Toshiaki ; Komatsu, Hiromi ; Okuda, Masato. / Field trial and performance of land mobile message communications using Ku-band satellite. In: IEICE Transactions on Communications. 1993 ; Vol. E76-B, No. 2. pp. 120-130.
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