Vehicle-to-vehicle safety messaging in DSRC

— This paper studies the design of layer-2 protocols for a vehicle to send safety messages to other vehicles. The target is to send vehicle safety messages with high reliability and low delay. The communication is one-to-many, local, and geo-significant. The vehicular communication network is ad-hoc, highly mobile, and with large numbers of contending nodes. We design several random access protocols for medium access control. The protocols fit in the DSRC multi-channel architecture. Analytical bounds on performance of the addressed protocols are derived. Simulations are conducted to assess the reception reliability and channel usage of the protocols. The sensitivity of the protocol performance is evaluated under various offered traffic and vehicular traffic flows. The results show our approach is feasible for vehicle safety messages in DSRC.

• Type: Conference
• Year: 2004
• Where: MOBICOM
• Authors: Qing Xu 0007, Tony K. Mak, Jeff Ko, Raja Sengupta
• Keywords: MOBICOM 2004, Random Access Protocols, Safety Messages, Vehicle Safety Messages