Performance evaluation of inter-vehicle packet relay for fast mobile road-vehicle communication

Takayuki Yamada, Ryoichi Shinkuma, Tatsuro Takahashi

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

In conventional road-vehicle communication systems, user terminals in the vehicles have to directly connect with wireless access points (APs). However, the speed of vehicles is so fast that the channel condition between the terminals and the APs constantly changes because of changing pathloss and time-varying fading. In this paper, to compensate for such deterioration, we propose to reduce relative speed between user terminals and APs by using an inter-vehicle packet relay technique. If a terminal can send or receive data via other vehicles running at lower speeds, the relative speed will decrease, which suppresses the dynamic range of path loss and deterioration by fading. We evaluate our method by computer simulations using a geometric propagation model. In the simulations, phase difference between multiple paths and path-loss fluctuation within one frame duration affect the performance. From the results of the simulations, we validate our method. Moreover, we evaluate interference in the overlapped zone between two AP areas. From the evaluation, we show that our packet relays do not cause a problem in interference between areas.

本文言語English
ホスト出版物のタイトル2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008
ページ212-216
ページ数5
DOI
出版ステータスPublished - 2008
外部発表はい
イベント2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008 - Las Vegas, NV, United States
継続期間: 2008 1 102008 1 12

出版物シリーズ

名前2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008

Conference

Conference2008 5th IEEE Consumer Communications and Networking Conference, CCNC 2008
国/地域United States
CityLas Vegas, NV
Period08/1/1008/1/12

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • ソフトウェア

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