TY - GEN
T1 - An Optimization Framework for Secure Delivery in Heterogeneous Coded Caching Systems
AU - Zewail, Ahmed A.
AU - Ibrahim, Abdelrahman M.
AU - Yener, Aylin
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - This paper investigates the performance of cache-aided systems with heterogeneous caches and secure delivery. In particular, we consider users with unequal caches and assume the signals transmitted during the delivery phase to be overheard by an external eavesdropper which must not gain any information about the system's files. We study server-based delivery and device-to-device-based delivery where the server does not participate in the delivery phase. For each scenario, assuming uncoded placement and linear delivery schemes, we provide an optimization framework to minimize the secure delivery load. We show that the secure delivery requirement can be satisfied by modifying the memory capacity constraints in the non-secure framework to take into account the cost of caching keys. In addition, we show that the cost of secure delivery is negligible for caching systems with large number of files.
AB - This paper investigates the performance of cache-aided systems with heterogeneous caches and secure delivery. In particular, we consider users with unequal caches and assume the signals transmitted during the delivery phase to be overheard by an external eavesdropper which must not gain any information about the system's files. We study server-based delivery and device-to-device-based delivery where the server does not participate in the delivery phase. For each scenario, assuming uncoded placement and linear delivery schemes, we provide an optimization framework to minimize the secure delivery load. We show that the secure delivery requirement can be satisfied by modifying the memory capacity constraints in the non-secure framework to take into account the cost of caching keys. In addition, we show that the cost of secure delivery is negligible for caching systems with large number of files.
UR - http://www.scopus.com/inward/record.url?scp=85083320331&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083320331&partnerID=8YFLogxK
U2 - 10.1109/IEEECONF44664.2019.9048895
DO - 10.1109/IEEECONF44664.2019.9048895
M3 - Conference contribution
AN - SCOPUS:85083320331
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 1232
EP - 1236
BT - Conference Record - 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019
A2 - Matthews, Michael B.
PB - IEEE Computer Society
T2 - 53rd Asilomar Conference on Circuits, Systems and Computers, ACSSC 2019
Y2 - 3 November 2019 through 6 November 2019
ER -