Impact of Content Popularity on Content Finding in NDN: Default NDN vs. Vicinity-based Enhanced NDN : 10th International Conference on Information Science and Technology, ICIST 2020

Suwannasa, A. and Broadbent, M. and Mauthe, A. (2020) Impact of Content Popularity on Content Finding in NDN: Default NDN vs. Vicinity-based Enhanced NDN : 10th International Conference on Information Science and Technology, ICIST 2020. In: 10th International Conference on Information Science and Technology, ICIST 2020, 2020-06-04 - 2020-06-05, Lecce, Italy.

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Named Data Networking allows a consumer to locate a desired content object by its name prefix. By using the best route strategy of the default NDN architecture, an Interest packet is forwarded along a default path indicated by the packet's name to find the content object. However, in this design, the content object can be requested several times and it might be replicated in several nodes that are close to the consumer. Hence, the best path to fetch the content object might not be the default path. We introduce a vicinity-based replica finding scheme to locate the replicas of the content object that are replicated nearby. We have found that the scheme can decrease the delivery time effectively with acceptable overhead costs. However, there are other important factors that can affect the content finding results. For example, locating highly popular content might be faster than finding low popular content depending on the different number of replicas. Cache replacement rates in different populated networks can also affect content finding results. In a high populated network, if the cache size is quite small, the replicas can be replaced easily. It is more difficult to find the replicas that have been replaced. In this paper, we evaluate the proposed scheme against different content popularity levels (from low to high). The results demonstrate that our scheme can perform better compared to NDN default in almost every case. © 2020 IEEE.

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10th International Conference on Information Science and Technology, ICIST 2020
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Conference code: 163310 Export Date: 4 November 2020 References: Jacobson, V., Smetters, D.K., Thornton, J.D., Plass, M.F., Briggs, N.H., Braynard, R.L., Networking named content (2009) Proceedings of the 5th International Conference on Emerging Networking Experiments and Technologies, pp. 1-12. , ser. CoNEXT ?09. New York, NY, USA ACM; Zhang, L., Afanasyev, A., Burke, J., Jacobson, V., Claffy, K., Crowley, P., Papadopoulos, C., Zhang, B., Named data networking (2014) Sigcomm Comput. Commun. 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09 Jun 2021 21:15
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15 Jul 2024 08:44