TY - GEN
T1 - Benefits of Coded Placement for Networks with Heterogeneous Cache Sizes
AU - Ibrahim, Abdelrahman M.
AU - Zewail, Ahmed A.
AU - Yener, Aylin
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/7/2
Y1 - 2018/7/2
N2 - In this work, we study coded placement in caching systems where the users have unequal cache sizes and demonstrate its performance advantage. In particular, we propose a caching scheme with coded placement for three-user systems that outperforms the best caching scheme with uncoded placement. In our proposed scheme, users cache both uncoded and coded pieces of the files, and the coded pieces at the users with large memories are decoded using the unicast/multicast signals intended to serve users with smaller memories. Furthermore, we extend the proposed scheme to larger systems and show the reduction in delivery load with coded placement compared to uncoded placement.
AB - In this work, we study coded placement in caching systems where the users have unequal cache sizes and demonstrate its performance advantage. In particular, we propose a caching scheme with coded placement for three-user systems that outperforms the best caching scheme with uncoded placement. In our proposed scheme, users cache both uncoded and coded pieces of the files, and the coded pieces at the users with large memories are decoded using the unicast/multicast signals intended to serve users with smaller memories. Furthermore, we extend the proposed scheme to larger systems and show the reduction in delivery load with coded placement compared to uncoded placement.
UR - http://www.scopus.com/inward/record.url?scp=85062989312&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85062989312&partnerID=8YFLogxK
U2 - 10.1109/ACSSC.2018.8645503
DO - 10.1109/ACSSC.2018.8645503
M3 - Conference contribution
AN - SCOPUS:85062989312
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1604
EP - 1608
BT - Conference Record of the 52nd Asilomar Conference on Signals, Systems and Computers, ACSSC 2018
A2 - Matthews, Michael B.
PB - IEEE Computer Society
T2 - 52nd Asilomar Conference on Signals, Systems and Computers, ACSSC 2018
Y2 - 28 October 2018 through 31 October 2018
ER -