RAS Nano & ITПроблемы передачи информации Problems of Information Transmission

  • ISSN (Print) 0555-2923
  • ISSN (Online) 3034-5839

Convolutional Codes with Optimum Bidirectional Distance Profile

PII
10.31857/S0555292323030014-1
DOI
10.31857/S0555292323030014
Publication type
Article
Status
Published
Authors
Volume/ Edition
Volume 59 / Issue number 3
Pages
3-25
Abstract
We define the bidirectional distance profile (BDP) of a convolutional code as the minimum of the distance profiles of the code and its corresponding “reverse” code. We present tables of codes with the optimum BDP (OBDP), which minimize the average complexity of bidirectional sequential decoding algorithms. The computer search is accelerated by the facts that optimum distance profile (ODP) codes of larger memory must have ODP codes of smaller memory as their “prefixes”, and that OBDP codes can be obtained by “concatenating” ODP and reverse ODP codes of smaller memory. We compare the performance of OBDP codes and other codes by simulation.
Keywords
Date of publication
18.09.2025
Year of publication
2025
Number of purchasers
0
Views
27

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