Abstract
Despite the fact that intersection collisions account for almost 30% of all crashes, intersection collision avoidance systems received less attention than the forward collision avoidance systems[1,2]. It is because the intersection collision problem is more complicated than rear-end crash and the limitations of the radar technology, the most widely used object sensing method in vehicle collision avoidance systems.
Recently, in [3,4], an intersection collision warning systems is reported and inter-vehicle data communication is done by direct broadcast based on 802.11[5] or DOLPHIN[6]. It is assumed that DGPS provides data to all the vehicles and all the 4-wheeled vehicles have the access to the navigation system. At a certain distance from the intersection, the vehicles begin to broadcast their locations, directions of travel and speeds. However, this approach has a shortcoming that broadcast is inherently unreliable without ACK messages from all the receiving peers, that is very difficult to be achieved in real-time environment.
In this paper, we evaluate a contention-free dynamic scheduling protocol, called Telematics Scheduling Protocol(TSP), for WSN-based intersection safety system in terms of the real-time reliable information aggregation characteristics. In particular, we use ns-2[7] simulator to demonstrate the real-time data aggregation performance of TSP. The performance result of TSP shows very high throughput and short delivery time suitable for the real-time reliable Telematics Intersection Safety System(TISS).
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References
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Han, W.W., Park, H., Kim, Y.M. (2007). Dynamic Scheduling Protocol for Highly-Reliable, Real-Time Information Aggregation for Telematics Intersection Safety System(TISS). In: Indulska, J., Ma, J., Yang, L.T., Ungerer, T., Cao, J. (eds) Ubiquitous Intelligence and Computing. UIC 2007. Lecture Notes in Computer Science, vol 4611. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-73549-6_17
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DOI: https://doi.org/10.1007/978-3-540-73549-6_17
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-73548-9
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