With the deployment of multimedia services over VANETs, there is a need to develop new techniques to insure various levels of\nquality of services (QoS) for real time applications. However, in such environments, it is not an easy task to determine adequate\nroutes to transmit data with specific application QoS requirements. In this paper, we propose CBQoS-Vanet, a new QoS-based\nrouting protocol tailored towards vehicular networks in a highway scenario. This protocol is based on the use of two techniques:\nfirst a clustering technique which organizes and optimizes the exchange of routing information and, second, a bee colony inspired\nalgorithm, which calculates the best routes froma source to a destination based on given QoS criteria. In our approach, clusters are\nformed around cluster heads that are themselves elected based on QoS considerations. The QoS criteria here are based on the two\ncategories of metrics: QoSmetrics andmobility metrics.The QoS metrics consists of the available bandwidth, the end-to-end delay,\nand the jitter.Themobility metrics consists of link expiration time and average velocity difference.We have studied the performance\nof CBQoS-Vanet through simulation and compared it to existing approaches. The results that we obtained show that our technique\noutperforms, in many aspects, the approaches that it was compared against.
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