Space Time Codes in Multi-Antenna Coded Caching Systems

Mahesh, AA and Rajan, BS (2022) Space Time Codes in Multi-Antenna Coded Caching Systems. In: 2022 IEEE International Symposium on Information Theory, ISIT 2022, 26 June 2022 through 1 July 2022, Espoo, pp. 1512-1517.

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Abstract

The paper "Adding transmitters dramatically boosts coded caching gains for finite file sizes"by E. Lampiris and P. Elia introduced multi antenna transmission as a possible strategy to increase coded caching gains. It showed that under the assumption of very high SNRs, if additive white Gaussian noise at the receivers is neglected, then full multiplexing as well as caching gain can be simultaneously obtained with reduced sub-packetization. In this paper, a more realistic setting where noise at the receivers is non-negligible is considered and a transmission scheme using space time codes is proposed to get diversity gain in addition to caching and multiplexing gains.

Item Type:	Conference Paper
Publication:	IEEE International Symposium on Information Theory - Proceedings
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to Institute of Electrical and Electronics Engineers Inc.
Keywords:	Antennas; Decoding; Gaussian noise (electronic); Signal to noise ratio; Transmissions; White noise, Caching system; Coded caching; Coordinate interleaved orthogonal design; Diversity gain; File sizes; High SNR; Multi-antenna; Multi-antenna transmission; Orthogonal design; Spacetime code (STC), Space time codes
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	15 Sep 2022 06:04
Last Modified:	15 Sep 2022 06:04
URI:	https://eprints.iisc.ac.in/id/eprint/76470

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