TY - GEN
T1 - Cache-aided coded multicast for correlated sources
AU - Hassanzadeh, P.
AU - Tulino, A.
AU - Llorca, J.
AU - Erkip, E.
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/17
Y1 - 2016/10/17
N2 - The combination of edge caching and coded multicasting is a promising approach to improve the efficiency of content delivery over cache-aided networks. The global caching gain resulting from content overlap distributed across the network in current solutions is limited due to the increasingly personalized nature of the content consumed by users. In this paper, the cache-aided coded multicast problem is generalized to account for the correlation among the network content by formulating a source compression problem with distributed side information. A correlation-aware achievable scheme is proposed and an upper bound on its performance is derived. It is shown that considerable load reductions can be achieved, compared to state of the art correlation-unaware schemes, when caching and delivery phases specifically account for the correlation among the content files.
AB - The combination of edge caching and coded multicasting is a promising approach to improve the efficiency of content delivery over cache-aided networks. The global caching gain resulting from content overlap distributed across the network in current solutions is limited due to the increasingly personalized nature of the content consumed by users. In this paper, the cache-aided coded multicast problem is generalized to account for the correlation among the network content by formulating a source compression problem with distributed side information. A correlation-aware achievable scheme is proposed and an upper bound on its performance is derived. It is shown that considerable load reductions can be achieved, compared to state of the art correlation-unaware schemes, when caching and delivery phases specifically account for the correlation among the content files.
UR - http://www.scopus.com/inward/record.url?scp=84994444353&partnerID=8YFLogxK
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U2 - 10.1109/ISTC.2016.7593137
DO - 10.1109/ISTC.2016.7593137
M3 - Conference contribution
AN - SCOPUS:84994444353
T3 - International Symposium on Turbo Codes and Iterative Information Processing, ISTC
SP - 360
EP - 364
BT - 2016 9th International Symposium on Turbo Codes and Iterative Information Processing
PB - IEEE Computer Society
T2 - 9th International Symposium on Turbo Codes and Iterative Information Processing, ISTC 2016
Y2 - 5 September 2016 through 9 September 2016
ER -