Abstract
This paper presents an open queueing model with blocking that enables us to determine the optimal fraction c * of the uplink channel capacity that should be dedicated to the contention channel in order to minimize the mean response time in a DOCSIS cable network. To assess the performance of this queueing network we make use of a decomposition technique. One of the key components of the model exists in capturing the behavior of the conflict resolution algorithm by means of a single processor sharing queue. The model is validated in three successive steps by means of several simulation programs. We also explore the impact of a variety of systems parameters, e.g., the number of cable modems, the initial backoff window size, etc. , on the optimum c *.
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Lambert, J., Van Houdt, B., Blondia, C. (2005). Dimensioning the Contention Channel of DOCSIS Cable Modem Networks. In: Boutaba, R., Almeroth, K., Puigjaner, R., Shen, S., Black, J.P. (eds) NETWORKING 2005. Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems. NETWORKING 2005. Lecture Notes in Computer Science, vol 3462. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11422778_28
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DOI: https://doi.org/10.1007/11422778_28
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-25809-4
Online ISBN: 978-3-540-32017-3
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