Presentation 2008-09-10
MM-SA Packet Forwarding Scheme for Inter-Vehicle Communications
Oyunchimeg SHAGDAR, Takashi OHYAMA, SHIRAZI Mehdad N., Suhua TANG, Ryutaro SUZUKI, Sadao OBANA,
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Abstract(in English) CSMA/CA is considered as the de-facto channel access scheme for distributed communications. However, in CSMA/CA, reliability performance degrades with the increase of the number of nodes. On the other hand, although communication range of CDMA is much smaller compared to that of CSMA/CA, CDMA can ensure reliable communication between neighboring nodes. This reason motivates our research and development activities on MM-SA (Multi-Carrier Multi-Code) inter-vehicle communication system that can achieve reliable and fast communication between neighboring vehicles. However, in some scenarios, such as preventing crossing collisions, position information of a vehicle has to be transmitted to vehicle (s), which is relatively far. This paper introduces an MM-SA-based packet forwarding scheme that can be applied to the target scenarios. Simulation results show that, compared to an CSMA/CA-based forwarding scheme, the proposed scheme improves packet delivery ratio by 20% and reduces forwarding latency by larger than 15 milliseconds.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Inter-vehicle communications / CDMA / CSMA/CA / packet forwarding
Paper # ITS2008-22
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Committee ITS
Conference Date 2008/9/3(1days)
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Paper Information
Registration To Intelligent Transport Systems Technology (ITS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) MM-SA Packet Forwarding Scheme for Inter-Vehicle Communications
Sub Title (in English)
Keyword(1) Inter-vehicle communications
Keyword(2) CDMA
Keyword(3) CSMA/CA
Keyword(4) packet forwarding
1st Author's Name Oyunchimeg SHAGDAR
1st Author's Affiliation ATR Adaptive Communications Research Laboratories()
2nd Author's Name Takashi OHYAMA
2nd Author's Affiliation ATR Adaptive Communications Research Laboratories
3rd Author's Name SHIRAZI Mehdad N.
3rd Author's Affiliation ATR Adaptive Communications Research Laboratories
4th Author's Name Suhua TANG
4th Author's Affiliation ATR Adaptive Communications Research Laboratories
5th Author's Name Ryutaro SUZUKI
5th Author's Affiliation ATR Adaptive Communications Research Laboratories
6th Author's Name Sadao OBANA
6th Author's Affiliation ATR Adaptive Communications Research Laboratories
Date 2008-09-10
Paper # ITS2008-22
Volume (vol) vol.108
Number (no) 200
Page pp.pp.-
#Pages 6
Date of Issue