Content caching for roadside units in cellular-vehicle to everything based on network coding

Xia Xinran; Chen Ye; Yin Jun; Dou Rulin; Zhang Dengyin

doi:10.11959/j.issn.2096-3750.2026.00409

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Content caching for roadside units in cellular-vehicle to everything based on network coding

Theory and Technology | 更新时间：2026-04-16

- Content caching for roadside units in cellular-vehicle to everything based on network coding
- Chinese Journal on Internet of Things Vol. 10, Issue 1, Pages: 181-188(2026)
- 作者机构：
  
  1.南京邮电大学物联网学院，江苏南京 210003
  2.金陵科技学院软件工程学院，江苏南京 211169
- 作者简介：
- 基金信息：
  
  The National Defense Basic Research Foundation of China (No. JCKY2023***007), The National Natural Science Foundation of China;NJUPT Science Foundation(62471241);Jiangsu Province Graduate Practical Innovation Program (No. SJCX24_0335, No. SJCX25_0365)(NY221095;NY223106)
- DOI：10.11959/j.issn.2096-3750.2026.00409
  CLC： TN929.5
- Received：26 March 2024，
  
  Revised：2025-07-11，
  
  Published：30 March 2026
- 稿件说明：
移动端阅览
夏欣然,陈烨,殷俊等.基于网络编码的蜂窝车联网边缘内容缓存方法[J].物联网学报,2026,10(01):181-188.

Xia Xinran,Chen Ye,Yin Jun,et al.Content caching for roadside units in cellular-vehicle to everything based on network coding[J].Chinese Journal on Internet of Things,2026,10(01):181-188.
夏欣然,陈烨,殷俊等.基于网络编码的蜂窝车联网边缘内容缓存方法[J].物联网学报,2026,10(01):181-188. DOI： 10.11959/j.issn.2096-3750.2026.00409.

Xia Xinran,Chen Ye,Yin Jun,et al.Content caching for roadside units in cellular-vehicle to everything based on network coding[J].Chinese Journal on Internet of Things,2026,10(01):181-188. DOI： 10.11959/j.issn.2096-3750.2026.00409.

摘要

边缘节点内容缓存收益是车联网边缘缓存系统的核心性能指标。基于车载用户的移动特性，对边缘节点的缓存部署方法进行数学建模，同时引入网络编码技术对比分析随机缓存方法和基于网络编码的随机缓存方法的性能差异，提出了一种基于网络编码的车联网边缘内容缓存算法，给出了算法缓存收益理论界限。实验结果表明，所提方法优于经典算法，对瞬时车速等不确定性因素具有更好的鲁棒性，且路边单元处的缓存内容命中率提升逾20%。

Abstract

The cache revenue of edge nodes is a key performance metric for the cellular-vehicle caching system. Based on the mobility characteristics of vehicular users

the caching deployment method at edge nodes was mathematically modeled. Network coding technology was introduced to comparatively analyze the performance differences between random caching and network coding-based random caching methods. A network coding-based edge content caching algorithm for vehicular networks was proposed

and a theoretical limits of the algorithm's caching benefits were analyzed. Experimental results showed that the proposed method outperforms the classic algorithms

exhibits greater robustness against uncertain factors such as instantaneous vehicle speed

and increases a cache hit rate improvement of over 20% at roadside units.

关键词

Keywords

references

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