Presentation 2011-01-27
Access Schemes for Driving Safety Support in High Density Traffic Environment : CSMA/CA vs. Multi-hop Distributed CDMA
Ryu MIURA, Sadao OBANA,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Standarization activities and development for practical application of inter-vehicle communication systems are actively undertaken in Europe, United States, Japan, and so on. Access schemes in those systems are mostly based on CSMA/CA, which is popularly used in Wireless LAN. However, it is also well known that performance of CSMA/CA significantly degrades when the number of terminals is large and their density is high. This paper presents a novel access scheme that is based on distributed CDMA combined with multi-hop packet forwarding. This scheme effectively uses the well-known near-far effect of CDMA to avoid hidden terminal problems and provides the packet success ratio as high as 100% with small transmission latency. An Overview of recent study on pedestrian-to-vehicle communication is also presented.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) autonomous distributed network / multi-hop / CDMA / inter-vehicle communications / pedestrian-to-vehicle communications
Paper # SANE2010-147
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Conference Information
Committee SANE
Conference Date 2011/1/20(1days)
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Paper Information
Registration To Space, Aeronautical and Navigational Electronics (SANE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Access Schemes for Driving Safety Support in High Density Traffic Environment : CSMA/CA vs. Multi-hop Distributed CDMA
Sub Title (in English)
Keyword(1) autonomous distributed network
Keyword(2) multi-hop
Keyword(3) CDMA
Keyword(4) inter-vehicle communications
Keyword(5) pedestrian-to-vehicle communications
1st Author's Name Ryu MIURA
1st Author's Affiliation National Institute of Information and Communications Technology:ATR Adaptive Communications Laboratories()
2nd Author's Name Sadao OBANA
2nd Author's Affiliation ATR Adaptive Communications Laboratories
Date 2011-01-27
Paper # SANE2010-147
Volume (vol) vol.110
Number (no) 390
Page pp.pp.-
#Pages 6
Date of Issue