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Software-Defined Network-Based Vehicular Networks: A Position Paper on Their Modeling and Implementation
Open AccessArticle

DCS: Distributed Caching Strategy at the Edge of Vehicular Sensor Networks in Information-Centric Networking

1
School of Science, Guangdong University of Petrochemical Technology, Maoming 525000, China
2
School of Intelligent Mechatronics Engineering, Sejong University, Seoul 05006, Korea
3
Department of Information and Communication Engineering, Yeungnam University, Daegu 38541, Korea
*
Authors to whom correspondence should be addressed.
Equal Authorship: Y.M. and M.A.N. contributed equally.
Sensors 2019, 19(20), 4407; https://doi.org/10.3390/s19204407
Received: 3 September 2019 / Revised: 9 October 2019 / Accepted: 9 October 2019 / Published: 11 October 2019
(This article belongs to the Special Issue Vehicular Sensor Networks: Applications, Advances and Challenges)
Information dissemination in current Vehicular Sensor Networks (VSN) depends on the physical location in which similar data is transmitted multiple times across the network. This data replication has led to several problems, among which resource consumption (memory), stretch, and communication latency due to the lake of data availability are the most crucial. Information-Centric Networking (ICN) provides an enhanced version of the internet that is capable of resolving such issues efficiently. ICN is the new internet paradigm that supports innovative communication systems with location-independent data dissemination. The emergence of ICN with VSNs can handle the massive amount of data generated from heterogeneous mobile sensors in surrounding smart environments. The ICN paradigm offers an in-network cache, which is the most effective means to reduce the number of complications of the receiver-driven content retrieval process. However, due to the non-linearity of the Quality-of-Experience (QoE) in VSN systems, efficient content management within the context of ICN is needed. For this purpose, this paper implements a new distributed caching strategy (DCS) at the edge of the network in VSN environments to reduce the number of overall data dissemination problems. The proposed DCS mechanism is studied comparatively against existing caching strategies to check its performance in terms of memory consumption, path stretch ratio, cache hit ratio, and content eviction ratio. Extensive simulation results have shown that the proposed strategy outperforms these benchmark caching strategies.
Keywords: information-centric networking (ICN); client-cache (CC); video on demand (VoD); vehicular sensor network (VSN) information-centric networking (ICN); client-cache (CC); video on demand (VoD); vehicular sensor network (VSN)
MDPI and ACS Style

Meng, Y.; Naeem, M.A.; Ali, R.; Zikria, Y.B.; Kim, S.W. DCS: Distributed Caching Strategy at the Edge of Vehicular Sensor Networks in Information-Centric Networking. Sensors 2019, 19, 4407.

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