To decrease the latency of emergency warnings and increase the deliver ratio of emergency warnings in vehicular networks,this paper presented an emergency warnings transmission policy which adapted to the variation of vehicular networks with nodes′density and make use of repetitive diffusio.

The Study of Survivable Routing Protocol for Vehicular Networks;

Especially we analyzed the characteristics of a large scale vehicular network and proposed a new location service for such an environment.

Application of voice detection to vehicle communication based on spectral entropy;

ARCNET train communication network modeling and simulation based on OPNET;

Access control protocol of train communication network and its selecting principle;

Research state and prospects of train communication network;

Through explaining the characteristic of CAN bus and the hierarchical structure based on OSI consulting models, this paper compares the senior protocol of CAN, introduces SAE J1939 communication standard based on CAN bus, and analyses that the components and the practical application situation of CAN bus in automobile network communication system.