Dynamic Cooperative Cache Management Scheme Based on Social and Popular Data in Vehicular Named Data Network

• Main Authors: Ashraf, M.W.A (Author), Huang, C. (Author), Huang, S. (Author), Raza, K.A (Author), Wu, D.-F (Author), Yin, Y. (Author)
• Format: Article
• Language: English
• Published: Hindawi Limited 2022
• Subjects: Cache management schemes; Cache performance; Contents deliveries; Cooperative cache; Cooperative caching; Dynamic environments; Information management; Named data networks; Performance; Replacement algorithm; Vehicular applications
• Online Access: View Fulltext in Publisher

 Vehicular Named Data Network (VNDN) is considered a strong paradigm to deploy in vehicular applications. In VNDN, each node has its cache, but due to limited cache, it directly affects the performance in a highly dynamic environment, which requires massive and fast content delivery. To reduce these issues, the cooperative caching plays an efficient role in VNDN. Most studies regarding cooperative caching focus on content replacement and caching algorithms and implement these methods in a static environment rather than a dynamic environment. In addition, few existing approaches addressed the cache diversity and latency in VNDN. This paper proposes a Dynamic Cooperative Cache Management Scheme (DCCMS) based on social and popular data, which improves the cache efficiency and implements it in a dynamic environment. We designed a two-level dynamic caching scheme, in which we choose the right caching node that frequently communicates with other nodes, keep the copy of the most popular content, and distribute it with the requester's node when needed. The main intention of DCCMS is to improve the cache performance in terms of reducing latency, server load, cache hit ratio, average hop count, cache utilization, and diversity. The simulation results show that our proposed DCCMS scheme improves the cache performance than other state-of-the-art approaches. © 2022 M. Wasim Abbas Ashraf et al.