Cluster-Based Cooperative Cache Deployment and Coded Delivery Strategy in C-V2X Networks

Author:

Bao Haizhou1ORCID,Huo Yiming2ORCID,Huang Chuanhe1ORCID,Dong Xiaodai2,Qiu Wanyu1ORCID

Affiliation:

1. School of Computer Science, Wuhan University, Wuhan 430072, China

2. Department of Electrical and Computer Engineering, University of Victoria, Victoria, V8P 5C2, Canada

Abstract

Cellular vehicle-to-everything- (C-V2X-) based communications can support various content-oriented applications and have gained significant progress in recent years. However, the limited backhaul bandwidth and dynamic topology make it difficult to obtain the multimedia service with high-reliability and low-latency communication in C-V2X networks, which may degrade the quality of experience (QoE). In this paper, we propose a novel cluster-based cooperative cache deployment and coded delivery strategy for C-V2X networks to improve the cache hit ratio and response time, reduce the request-response delay, and improve the bandwidth efficiency. To begin with, we design an effective vehicle cluster method. Based on the constructed cluster, we propose a two-level cooperative cache deployment approach to cache the frequently requested files on the edge nodes, LTE evolved NodeB (eNodeB) and cluster head (CH), to maximize the overall cache hit ratio. Furthermore, we propose an effective coded delivery strategy to minimize the network load and the ratio of redundant files. Simulation results demonstrate that our proposed method can effectively reduce the average response delay and network load and improve both the hit ratio and the ratio of redundant files.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering,Computer Networks and Communications,Information Systems

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Q-learning and fuzzy logic multi-tier multi-access edge clustering for 5g v2x communication;Network: Computation in Neural Systems;2024-03-06

2. Cooperative caching strategy based mobile vehicle social‐aware in internet of vehicles;Transactions on Emerging Telecommunications Technologies;2023-05-17

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