10 papers · 1 filter
Collaborative Coded Caching for Partially Connected Networks
Kagan Akcay, Eleftherios Lampiris, MohammadJavad Salehi +1
Coded caching leverages the differences in user cache memories to achieve gains that scale with the total cache size, alleviating network congestion due to high-quality content req…
Adapt or Wait: Quality Adaptation for Cache-aided Channels
Eleftherios Lampiris, Giuseppe Caire
This work focuses on quality adaptation as a means to counter the effects of channel degradation in wireless, cache-aided channels. We design a delivery scheme which combines coded…
Multi-Transmitter Coded Caching Networks with Transmitter-side Knowledge of File Popularity
Eleftherios Lampiris, Berksan Serbetci, Thrasyvoulos Spyropoulos +2
This work presents a new way of exploiting non-uniform file popularity in coded caching networks. Focusing on a fully-connected fully-interfering wireless setting with multiple cac…
Fundamental Limits of Wireless Caching Under Mixed Cacheable and Uncacheable Traffic
Hamdi Joudeh, Eleftherios Lampiris, Petros Elia +1
We consider cache-aided wireless communication scenarios where each user requests both a file from an a-priori generated cacheable library (referred to as 'content'), and an uncach…
Fundamental Limits of Wireless Caching under Uneven-Capacity Channels
Eleftherios Lampiris, Jingjing Zhang, Osvaldo Simeone +1
This work identifies the fundamental limits of cache-aided coded multicasting in the presence of the well-known `worst-user' bottleneck. This stems from the presence of receiving u…
Wyner's Network on Caches: Combining Receiver Caching with a Flexible Backhaul
Eleftherios Lampiris, Aly El Gamal, Petros Elia
In this work, we study a large linear interference network with an equal number of transmitters and receivers, where each transmitter is connected to two subsequent receivers. Each…