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On Encoding of Position Information in Inter-Vehicle Communications

Yoshito GOTO, Takaaki HASEGAWA

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Summary :

This paper discusses encoding of vehicular position information using predictive algorithms in inter-vehicle communications (IVC) from the viewpoints of source coding and noisy channels. Two vehicular driving models are assumed; one is the 15-mode as a suburban rapid transit driving pattern, the other is called calming mode as a street-driving pattern. Three types of schemes are compared; a pulse code modulation (PCM) scheme, a predictive coding (PC) scheme, and the variable interval prediction (VIP) scheme that is proposed here. This paper assumes that precise position information is got from a positioning system, and that all the transmitters and receivers have common predictors. Performance comparisons of the three types of schemes are carried out both of noiseless and noisy channels. Results show that the VIP scheme is superior to any other scheme.

Publication
IEICE TRANSACTIONS on Information Vol.E85-D No.11 pp.1822-1829
Publication Date
2002/11/01
Publicized
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Type of Manuscript
Special Section PAPER (Special Issue on Information System Technologies for ITS)
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