Caching Transient Contents in Vehicular Named Data Networking: A Performance Analysis

被引：27

作者：

Amadeo, Marica ^{[1
]}

Campolo, Claudia ^{[1
]}

Ruggeri, Giuseppe ^{[1
]}

Lia, Gianmarco ^{[1
]}

Molinaro, Antonella ^{[1
,2
]}

机构：

[1] Univ Mediterranea Reggio Calabria, DIIES Dept, Via Graziella, I-89100 Reggio Di Calabria, Italy

[2] Univ Paris Saclay, Cent Supelec, L2S, F-91190 Gif Sur Yvette, France

来源：

SENSORS | 2020年 / 20卷 / 07期

关键词：

Caching; Named Data Networking; Information Centric Networking; Vehicular Ad Hoc Networks; INFORMATION CENTRIC NETWORKING; AD-HOC NETWORKS; ACCESS TECHNOLOGIES; INTERNET; SUPPORT;

D O I：

10.3390/s20071985

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Named Data Networking (NDN) is a promising communication paradigm for the challenging vehicular ad hoc environment. In particular, the built-in pervasive caching capability was shown to be essential for effective data delivery in presence of short-lived and intermittent connectivity. Existing studies have however not considered the fact that multiple vehicular contents can be transient, i.e., they expire after a certain time period since they were generated, the so-called FreshnessPeriod in NDN. In this paper, we study the effects of caching transient contents in Vehicular NDN and present a simple yet effective freshness-driven caching decision strategy that vehicles can implement autonomously. Performance evaluation in ndnSIM shows that the FreshnessPeriod is a crucial parameter that deeply influences the cache hit ratio and, consequently, the data dissemination performance.

引用

页数：17

共 44 条

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