Towards Ultra-Reliable Signature Coding With Multiple Transmit Antennas

Roope Vehkalahti*, Tefjol Pllaha, Olav Tirkkonen

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)
99 Downloads (Pure)

Abstract

We consider sparse user detection in fading channels. With Rayleigh flat fading, deep fades occur with relatively high probability and it becomes challenging to provide highly reliable user detection, irrespective of the chosen multiuser detection algorithm. It has been proven that with a large number of receive antennas, this problem can be overcome and both the reliability and number of detectable users can be increased. In this paper, we show that similar improvements can be achieved by moderately increasing the number of transmit antennas at the user terminals. With multiple transmit antennas, code design becomes a problem. We provide a design criterion and show that the detection probability can be considerably improved by using the resulting well-balanced MIMO signature codes, especially in the high-reliability regime.
Original languageEnglish
Title of host publicationProceedings of IEEE 93rd Vehicular Technology Conference, VTC 2021
PublisherIEEE
Number of pages5
ISBN (Electronic)978-1-7281-8964-2
DOIs
Publication statusPublished - 15 Jun 2021
MoE publication typeA4 Conference publication
EventIEEE Vehicular Technology Conference - Helsinki, Finland
Duration: 25 Apr 202128 Apr 2021
Conference number: 93

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1090-3038
ISSN (Electronic)2577-2465

Conference

ConferenceIEEE Vehicular Technology Conference
Abbreviated titleVTC-Spring
Country/TerritoryFinland
CityHelsinki
Period25/04/202128/04/2021

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