Sparse Matrix Codes: Rate-Reliability Trade-offs for URLLC

Sudarshan Adiga, Ravi Tandon, Tamal Bose

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

In this paper, we present a new channel coding technique, namely sparse matrix codes (SMC), for URLLC applications with the goal of achieving higher reliability, and low decoding complexity. The main idea behind SMC is to map the message bits to a structured sparse matrix which is then multiplied by a spreading matrix and transmitted over the communication channel over time-or frequency resources. At the decoder, we recover the message from the channel output using a low-decoding complexity algorithm which is derived by leveraging and adapting tools from 2D compressed sensing. We perform various experiments to compare our approach with sparse vector code (SVC) and Polar codes for block error rate (BLER). From our experiments, we show that for a fixed code rate and reliability requirement (BLER), SMC operates at shorter blocklengths compared to Polar codes and SVC.

Original languageEnglish (US)
Title of host publication2022 56th Annual Conference on Information Sciences and Systems, CISS 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages66-71
Number of pages6
ISBN (Electronic)9781665417969
DOIs
StatePublished - 2022
Event56th Annual Conference on Information Sciences and Systems, CISS 2022 - Princeton, United States
Duration: Mar 9 2022Mar 11 2022

Publication series

Name2022 56th Annual Conference on Information Sciences and Systems, CISS 2022

Conference

Conference56th Annual Conference on Information Sciences and Systems, CISS 2022
Country/TerritoryUnited States
CityPrinceton
Period3/9/223/11/22

ASJC Scopus subject areas

  • Information Systems and Management
  • Artificial Intelligence
  • Computer Science Applications
  • Information Systems

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