Vehicle-to-vehicle communication and ranging system using code-hopping spread spectrum technique with code collision avoidance algorithm

摘要

Recently, many researches of ITS (Intelligent Transport Systems) which aim at the increase in efficiency of the circulation. We propose Vehicle-to-Vehicle Communication and Ranging System Using Code-Hopping Spread Spectrum Technique with Code Collision Avoidance Algorithm called Code-Hopping Boomerang Transmission System with Code Collision Avoidance Algorithm in this paper. Code-Hopping Boomerang Transmission System can perform Vehicle-to-Vehicle communication and ranging at the same time by using some changed PN codes in accordance with a hopping pattern. However, it has the problem of code collision. The proposed system can decrease the influence of the problem, because the code is changed for other code in the reserve when the collision of the code happens.