Integrating PNC and RLNC for BSM dissemination in VANETs

摘要

Basic Safety Messaging (BSM) is a crucial application to provide road safety in vehicular ad-hoc networks (VANET). This paper proposes an efficient and reliable MAC protocol for BSM packets dissemination based on the framework of Dedicated Short-Range Communication (DSRC). It perfectly integrates Physical-Layer Network Coding (PNC) and Random Linear Network Coding (RLNC) in both roadside unit (RSU) and onboard unit (OBU) nodes. Comprehensive simulation shows that compared with the existing schemes for BSM dissemination, the proposed protocol achieves both high flexibility and excellent performance in packet delivery ratio (PDR).