The evaluation of a predictive forwarding scheme in three-dimensional vehicular communication scenarios

Packet forwarding plays an important role in inter-vehicle communications. A predicted forwarding is a promising solution to address high mobility issues in a Vehicular Ad-hoc Network (VANET) as it increases the ratio of packet transmissions. The predicted forwarding scheme proposed, termed Vehicular-to-vehicular Urban Network (V2VUNet), is based on an angle measurement between a sender and a receiver and reduces the flooding mechanism time. Angle measurements can be used to determine the location of a relay, with the addition of a direction value to the relay's location at a current time, such that the sender can predict the future relay's location. This paper proposes and evaluates the predicted forwarding scheme which is indicated by the Vertical Relative Angle (VRA) parameter. It maintains a longer life time duration of communicating vehicles.