Conclusion
In this chapter, we have provided a classification of protocols that are suitable for continuously transmitting highly accurate location information. We have discussed different protocol variants and compared them according to their effectiveness and efficiency for characteristic types of mobile objects. Especially the class of dead-reckoning protocols has the potential to reduce the number of required update messages, while still being able to guarantee a certain requested accuracy. More advanced dead-reckoning protocols (such as a map-based protocol) promise to reduce the number of required messages still further.
With the help of the analysis presented in this chapter a suitable protocol can be found for a given scenario. Furthermore, the analysis gives an estimation for the expected network load and the average uncertainty of the transmitted location information, as well as an upper bound for its maximum uncertainty. Based on the querying and reporting protocols, we also proposed a combined protocol that integrates most of the advantageous properties of the basic protocols. Here, the analysis can give optimal parameter settings for a certain environment. Finally, we validated our analytical results by means of a simulation based on real-world GPS traces.
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Leonhardi, A., Rothermel, K. (2002). Protocols for Updating Highly Accurate Location Information. In: Sarikaya, B. (eds) Geographic Location in the Internet. The International Series in Engineering and Computer Science, vol 691. Springer, Boston, MA. https://doi.org/10.1007/0-306-47573-1_5
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DOI: https://doi.org/10.1007/0-306-47573-1_5
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