A Cooperative ARQ for Delay-Tolerant Vehicular Networks

This paper proposes a Cooperative ARQ protocol to be used in delay-tolerant vehicular networks. The proposed scheme has been implemented and evaluated through an experimental testbed, showing that packet losses in transmissions from an access point to cars can be reduced to the half without any cost as long as cooperation takes place on areas where connectivity with access points is not present. In these areas, cars in a platoon recover from other cars packets that they have failed to receive from the access point.