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We study a two-hop cache-aided network, where a layer of relay nodes connects a server and a set of end users, i.e., a combination network. We consider the case where both the relay nodes and the end users have caching capabilities. We provide upper and lower bounds which are applicable to any combination network, noting that previous work had focused on models where the relays do not have caches...
We consider a device-to-device coded caching system, where each user is guaranteed recover its requested file and is simultaneously prevented from recovering any file it did not request. We jointly optimize the cache placement and delivery policies such that a set of end users are able to satisfy their requests while preserving the confidentiality constraints. We develop an upper bound utilizing secret...
We consider networks where a set of end users, equipped with cache memories, are connected to a single server via a set of relay nodes. We further consider a special class of such networks that satisfy the so called resolvability property and study centralized coded caching scenarios under three security requirements. Under the first scenario, i.e., secure delivery, the wiretapper should not gain...
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