TY - GEN
T1 - Cache-Aided Combination Networks with Asymmetric End Users
AU - Zewail, Ahmed A.
AU - Yener, Aylin
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/7
Y1 - 2019/7
N2 - We study combination networks where a layer of relay nodes connects a server to a set of end users with cache memories via unicast links. Unlike previous models on cache-aided combination networks where all users are connected to the same number of relay nodes, in this work, we consider two classes of end users, where users from the same class are connected to the same number of relay nodes. Using maximum distance separable (MDS) codes, we provide a coded caching scheme by jointly optimizing the cache placement and the delivery phase in order to minimize the delivery load over the two hops. The scheme is performed over two stages. In the first stage, we serve users from both classes, then during the second stage, we serve users from the class connected to a smaller number of relays. We extend the proposed scheme to networks with more than two classes of end users.
AB - We study combination networks where a layer of relay nodes connects a server to a set of end users with cache memories via unicast links. Unlike previous models on cache-aided combination networks where all users are connected to the same number of relay nodes, in this work, we consider two classes of end users, where users from the same class are connected to the same number of relay nodes. Using maximum distance separable (MDS) codes, we provide a coded caching scheme by jointly optimizing the cache placement and the delivery phase in order to minimize the delivery load over the two hops. The scheme is performed over two stages. In the first stage, we serve users from both classes, then during the second stage, we serve users from the class connected to a smaller number of relays. We extend the proposed scheme to networks with more than two classes of end users.
UR - http://www.scopus.com/inward/record.url?scp=85072331818&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85072331818&partnerID=8YFLogxK
U2 - 10.1109/SPAWC.2019.8815479
DO - 10.1109/SPAWC.2019.8815479
M3 - Conference contribution
AN - SCOPUS:85072331818
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
BT - 2019 IEEE 20th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 20th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2019
Y2 - 2 July 2019 through 5 July 2019
ER -