On coded caching in the overloaded MISO broadcast channel

Enrico Piovano; Hamdi Joudeh; Bruno Clerckx

doi:10.1109/ISIT.2017.8007039

On coded caching in the overloaded MISO broadcast channel

Enrico Piovano, Hamdi Joudeh, Bruno Clerckx

School of Electrical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

37 Citations (Scopus)

Abstract

This work investigates the interplay of coded caching and spatial multiplexing in an overloaded Multiple-Input-Single-Output (MISO) Broadcast Channel (BC), i.e. a system where the number of users is greater than the number of transmitting antennas. On one hand, coded caching uses the aggregate global cache memory of the users to create multicasting opportunities. On the other hand, multiple antennas at the transmitter leverage the available CSIT to transmit multiple streams simultaneously. In this paper, we introduce a novel scheme which combines both the gain derived from coded-caching and spatial multiplexing and outperforms existing schemes in terms of delivery time and CSIT requirement.

Original language	English
Title of host publication	2017 IEEE International Symposium on Information Theory, ISIT 2017
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2795-2799
Number of pages	5
ISBN (Electronic)	9781509040964
DOIs	https://doi.org/10.1109/ISIT.2017.8007039
Publication status	Published - 2017 Aug 9
Event	2017 IEEE International Symposium on Information Theory, ISIT 2017 - Aachen, Germany Duration: 2017 Jun 25 → 2017 Jun 30

Publication series

Name	IEEE International Symposium on Information Theory - Proceedings
ISSN (Print)	2157-8095

Other

Other	2017 IEEE International Symposium on Information Theory, ISIT 2017
Country/Territory	Germany
City	Aachen
Period	17/6/25 → 17/6/30

ASJC Scopus subject areas

Theoretical Computer Science
Information Systems
Modelling and Simulation
Applied Mathematics

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10.1109/ISIT.2017.8007039

Cite this

Piovano, E., Joudeh, H., & Clerckx, B. (2017). On coded caching in the overloaded MISO broadcast channel. In 2017 IEEE International Symposium on Information Theory, ISIT 2017 (pp. 2795-2799). Article 8007039 (IEEE International Symposium on Information Theory - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISIT.2017.8007039

On coded caching in the overloaded MISO broadcast channel. / Piovano, Enrico; Joudeh, Hamdi; Clerckx, Bruno.
2017 IEEE International Symposium on Information Theory, ISIT 2017. Institute of Electrical and Electronics Engineers Inc., 2017. p. 2795-2799 8007039 (IEEE International Symposium on Information Theory - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Piovano, E, Joudeh, H & Clerckx, B 2017, On coded caching in the overloaded MISO broadcast channel. in 2017 IEEE International Symposium on Information Theory, ISIT 2017., 8007039, IEEE International Symposium on Information Theory - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 2795-2799, 2017 IEEE International Symposium on Information Theory, ISIT 2017, Aachen, Germany, 17/6/25. https://doi.org/10.1109/ISIT.2017.8007039

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abstract = "This work investigates the interplay of coded caching and spatial multiplexing in an overloaded Multiple-Input-Single-Output (MISO) Broadcast Channel (BC), i.e. a system where the number of users is greater than the number of transmitting antennas. On one hand, coded caching uses the aggregate global cache memory of the users to create multicasting opportunities. On the other hand, multiple antennas at the transmitter leverage the available CSIT to transmit multiple streams simultaneously. In this paper, we introduce a novel scheme which combines both the gain derived from coded-caching and spatial multiplexing and outperforms existing schemes in terms of delivery time and CSIT requirement.",

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On coded caching in the overloaded MISO broadcast channel

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