Ecole d'ingénieur et centre de recherche en Sciences du numérique

Soft cache hits and the impact of alternative content recommendations on mobile edge caching

Spyropoulos, Thrasyvoulos; Sermpezis, Pavlos

CHANTS 2016, 11th ACM Workshop on Challenged Networks, co-located with ACM MobiCom 2016, 7 October 2016, New-York, USA

Caching popular content at the edge of future mobile networks has been widely considered in order to alleviate the impact of the data tsunami on both the access and backhaul networks. A number of interesting techniques have been proposed, including femto-caching and "delayed" or opportunistic cache access. Nevertheless, the majority of these approaches suffer from the rather limited storage capacity of the edge caches, compared to the tremendous and rapidly increasing size of the Internet content catalog. We propose to depart from the assumption of hard cache misses, common in most existing works, and consider "soft" cache misses, where if the original content is not available, an alternative content that is locally cached can be recommended. Given that Internet content consumption is increasingly entertainment-oriented, we believe that a related content could often lead to complete or at least partial user satisfaction, without the need to retrieve the original content over expensive links. In this paper, we formulate the problem of optimal edge caching with soft cache hits, in the context of delayed access, and analyze the expected gains. We then show using synthetic and real datasets of related video contents that promising caching gains could be achieved in practice.

Document Doi Bibtex

Titre:Soft cache hits and the impact of alternative content recommendations on mobile edge caching
Type:Conférence
Langue:English
Ville:New-York
Pays:ÉTATS-UNIS
Date:
Département:Systèmes de Communication
Eurecom ref:5002
Copyright: © ACM, 2016. This is the author's version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in CHANTS 2016, 11th ACM Workshop on Challenged Networks, co-located with ACM MobiCom 2016, 7 October 2016, New-York, USA http://dx.doi.org/10.1145/2979683.2979688
Bibtex: @inproceedings{EURECOM+5002, doi = {http://dx.doi.org/10.1145/2979683.2979688}, year = {2016}, title = {{S}oft cache hits and the impact of alternative content recommendations on mobile edge caching}, author = {{S}pyropoulos, {T}hrasyvoulos and {S}ermpezis, {P}avlos}, booktitle = {{CHANTS} 2016, 11th {ACM} {W}orkshop on {C}hallenged {N}etworks, co-located with {ACM} {M}obi{C}om 2016, 7 {O}ctober 2016, {N}ew-{Y}ork, {USA}}, address = {{N}ew-{Y}ork, {\'{E}}{TATS}-{UNIS}}, month = {10}, url = {http://www.eurecom.fr/publication/5002} }
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