Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis

The idea behind network caching is to reduce network traffic during peak hours via transmitting frequently-requested content items to end users during off-peak hours. However, due to limited cache sizes and unpredictable access patterns, this might not totally eliminate the need for data transmissio...

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Autores principales:	Behrouz Zolfaghari, Vikrant Singh, Brijesh Kumar Rai, Khodakhast Bibak, Takeshi Koshiba
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	coded caching secure delivery hierarchical coded caching cost analysis system model Science Q Astrophysics QB460-466 Physics QC1-999
Acceso en línea:	https://doaj.org/article/73aa16272a884df0b7ffbfd4b7023416
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spelling	oai:doaj.org-article:73aa16272a884df0b7ffbfd4b70234162021-11-25T17:29:50ZCryptography in Hierarchical Coded Caching: System Model and Cost Analysis10.3390/e231114591099-4300https://doaj.org/article/73aa16272a884df0b7ffbfd4b70234162021-11-01T00:00:00Zhttps://www.mdpi.com/1099-4300/23/11/1459https://doaj.org/toc/1099-4300The idea behind network caching is to reduce network traffic during peak hours via transmitting frequently-requested content items to end users during off-peak hours. However, due to limited cache sizes and unpredictable access patterns, this might not totally eliminate the need for data transmission during peak hours. Coded caching was introduced to further reduce the peak hour traffic. The idea of coded caching is based on sending coded content which can be decoded in different ways by different users. This allows the server to service multiple requests by transmitting a single content item. Research works regarding coded caching traditionally adopt a simple network topology consisting of a single server, a single hub, a shared link connecting the server to the hub, and private links which connect the users to the hub. Building on the results of Sengupta et al. (IEEE Trans. Inf. Forensics Secur., 2015), we propose and evaluate a yet more complex system model that takes into consideration both throughput and security via combining the mentioned ideas. It is demonstrated that the achievable rates in the proposed model are within a constant multiplicative and additive gap with the minimum secure rates.Behrouz ZolfaghariVikrant SinghBrijesh Kumar RaiKhodakhast BibakTakeshi KoshibaMDPI AGarticlecoded cachingsecure deliveryhierarchical coded cachingcost analysissystem modelScienceQAstrophysicsQB460-466PhysicsQC1-999ENEntropy, Vol 23, Iss 1459, p 1459 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	coded caching secure delivery hierarchical coded caching cost analysis system model Science Q Astrophysics QB460-466 Physics QC1-999
spellingShingle	coded caching secure delivery hierarchical coded caching cost analysis system model Science Q Astrophysics QB460-466 Physics QC1-999 Behrouz Zolfaghari Vikrant Singh Brijesh Kumar Rai Khodakhast Bibak Takeshi Koshiba Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis
description	The idea behind network caching is to reduce network traffic during peak hours via transmitting frequently-requested content items to end users during off-peak hours. However, due to limited cache sizes and unpredictable access patterns, this might not totally eliminate the need for data transmission during peak hours. Coded caching was introduced to further reduce the peak hour traffic. The idea of coded caching is based on sending coded content which can be decoded in different ways by different users. This allows the server to service multiple requests by transmitting a single content item. Research works regarding coded caching traditionally adopt a simple network topology consisting of a single server, a single hub, a shared link connecting the server to the hub, and private links which connect the users to the hub. Building on the results of Sengupta et al. (IEEE Trans. Inf. Forensics Secur., 2015), we propose and evaluate a yet more complex system model that takes into consideration both throughput and security via combining the mentioned ideas. It is demonstrated that the achievable rates in the proposed model are within a constant multiplicative and additive gap with the minimum secure rates.
format	article
author	Behrouz Zolfaghari Vikrant Singh Brijesh Kumar Rai Khodakhast Bibak Takeshi Koshiba
author_facet	Behrouz Zolfaghari Vikrant Singh Brijesh Kumar Rai Khodakhast Bibak Takeshi Koshiba
author_sort	Behrouz Zolfaghari
title	Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis
title_short	Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis
title_full	Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis
title_fullStr	Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis
title_full_unstemmed	Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis
title_sort	cryptography in hierarchical coded caching: system model and cost analysis
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/73aa16272a884df0b7ffbfd4b7023416
work_keys_str_mv	AT behrouzzolfaghari cryptographyinhierarchicalcodedcachingsystemmodelandcostanalysis AT vikrantsingh cryptographyinhierarchicalcodedcachingsystemmodelandcostanalysis AT brijeshkumarrai cryptographyinhierarchicalcodedcachingsystemmodelandcostanalysis AT khodakhastbibak cryptographyinhierarchicalcodedcachingsystemmodelandcostanalysis AT takeshikoshiba cryptographyinhierarchicalcodedcachingsystemmodelandcostanalysis
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Cryptography in Hierarchical Coded Caching: System Model and Cost Analysis

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