Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/D7971DD5-5E54-4AEA-8144-AC73BF5FB295 | - |
| Αναγνωριστικό | https://doi.org/10.1109/TNET.2022.3219161 | - |
| Αναγνωριστικό | https://ieeexplore.ieee.org/document/9944976 | - |
| Γλώσσα | en | - |
| Μέγεθος | 16 pages | en |
| Τίτλος | Multi-transmitter coded caching networks with transmitter-side knowledge of file popularity | en |
| Δημιουργός | Serbetci Berksan | en |
| Δημιουργός | Lampiris, Eleftherios, 1987- | en |
| Δημιουργός | Spyropoulos Thrasyvoulos | en |
| Δημιουργός | Σπυροπουλος Θρασυβουλος | el |
| Δημιουργός | Caire, Giuseppe, 1965- | en |
| Δημιουργός | Elia Petros | en |
| Εκδότης | Institute of Electrical and Electronics Engineers | en |
| Περίληψη | 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 cache-enabled transmitters and receivers, we show how non-uniform file popularity can be used very efficiently to accelerate the impact of transmitter-side data redundancy on receiver-side coded caching. This approach is motivated by the recent discovery that, under any realistic file-size constraint, having content appear in multiple transmitters can in fact dramatically boost the speed-up factor attributed to coded caching. We formulate an optimization problem that exploits file popularity to optimize the placement of files at the transmitters. Consequently, we propose a search algorithm that solves the problem at hand while reducing the variable search space significantly. We also prove an analytical performance upper bound, which is in fact met by our algorithm in the regime of many receivers. Our work reflects the benefits of allocating higher cache redundancy to more popular files, but also reflects a law of diminishing returns where for example very popular files may in fact benefit from minimum redundancy. In the end, this work reveals that in the context of coded caching, employing multiple transmitters can be a catalyst in fully exploiting file popularity, as it avoids various asymmetry complications that appear when file popularity is used to alter the receiver-side cache placement. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2023-12-01 | - |
| Ημερομηνία Δημοσίευσης | 2022 | - |
| Θεματική Κατηγορία | Coded caching | en |
| Θεματική Κατηγορία | Optimization | en |
| Θεματική Κατηγορία | Femtocaching | en |
| Βιβλιογραφική Αναφορά | B. Serbetci, E. Lampiris, T. Spyropoulos, G. Caire and P. Elia, "Multi-transmitter coded caching networks with transmitter-side knowledge of file popularity," IEEE/ACM Trans. Networking, vol. 31, no. 3, pp. 1277-1292, June 2023, doi: 10.1109/TNET.2022.3219161. | en |
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