Reliable wireless broadcast with random network coding for real-time applications
WCNC'09 Proceedings of the 2009 IEEE conference on Wireless Communications & Networking Conference
Link stability-aware reliable packet transmitting mechanism in mobile ad hoc network
International Journal of Communication Systems
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We demonstrate a method for improving quality of ad-hoc multihop wireless communications between moving vehicles. This method is designed to overcome problems of high packet loss and route instability common in inter-vehicular communications. We implemented the proposed method as middleware supporting real-time packet transmissions such as VoIP, and evaluated the performance in experimental tests, including a 3-vehicle test on a public road. We obtained measurement results showing maximum packet loss lower than 5 %, compared to more than 80% with existing implementations of the ad hoc routing protocols OLSR and AODV. We also showed that it is possible to support good quality VoIP broadcasts at normal traffic speeds of from 40km/h to 60km/h on open roads.