Image Transfer Frequency Division Multiplex Multi-Hop Network Using IEEE 802.15.4

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  • Inui Kazuhiro
    Department of Knowledge-based Information Engineering, Toyohashi University of Technology
  • Sugiura Akihiko
    Graduate School of Science and Technology Shizuoka University
  • Kobayashi Hideyuki
    Graduate School of Science and Technology Shizuoka University

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Other Title
  • ＩＥＥＥ　８０２．１５．４を用いた周波数分割多重型マルチホップネットワークによる画像転送
  • IEEE802 15 4 オ モチイタ シュウハスウブンカツ タジュウガタ マルチホップ ネットワーク ニ ヨル ガゾウ テンソウ

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Abstract

Recently, the wireless sensor network where advanced sensing, and image recognition and a network were connected attracts attention. In this research, the multi-hop wireless sensor network which carries out sensing of the image which used IEEE 802.15.4 ZigBee is built. In the multi-hop network, two or more sets of terminals may be communicating within 1 hop using the same frequency band. In that case, communicative delay occurs by access control (CSMA/CA) of IEEE 802.15.4. In order to solve this problem, in this research, proposal of the image transfer network which applied the Frequency Division Multiplex system to IEEE 802.15.4, and construction were performed. In order to show the usefulness of this proposal system, image transmission by the conventional system and a proposal system was performed, and transmission time was measured. When a proposal system was applied, improvement in a throughput has been confirmed as compared with the conventional system. Furthermore, improvement in a throughput was confirmed by performing a channel setup which avoided the channel currently used by wireless LAN. Moreover, it confirmed that a proposal system improved about 25 [msec] faster than the conventional system by the experiment of the picture transmission by communication of IEEE 802.15.4.

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