Abstract:
In vehicular ad hoc networks (VANETs), safety related applications require fast and reliable message
broadcasting techniques for efficient performance. Reducing
redundancy and increasing the reliability of message broadcasts
are key challenges amid high mobility, rapidly changing
topologies, and shorter communication ranges. The broadcasting
protocol needs to be scalable for large variations in vehicle
densities and road topologies. This paper presents a new
broadcast protocol for safety applications in vehicular networks.
The discussed scheme is adaptive to current network loads and
channel conditions. Compared with other state-of-the-art
protocols in its category, it offers better robustness, coverage,
and scalability. It achieves these gains by selecting the next relay
node adaptively and effectively suppressing redundant
transmission of safety messages. Compared to existing work, the
presented protocol offers performance improvements in terms of
coverage and delay. It offers a 21% improvement in delay
compared to the farthest distance-based protocol.
