Data Transmission Using Convolutional Codes and Bi-directional Soft Output Viterbi Algorithm over the Two-User Binary Adder Channel

  • Maria de Lourdes Melo Guedes Alcoforado University of Pernambuco http://orcid.org/0000-0002-6311-1600
  • Lucas Bulhões University of Pernambuco
  • Abner Andrade University of Pernambuco
  • Francisco Madeiro University of Pernambuco
  • Valdemar Cardoso da Rocha Jr. Federal University of Pernambuco
Keywords: Bidirectional soft-output Viterbi algorithm, convolutional codes, 2-BAC channel AWGN

Abstract

This article introduces and tests the use of the soft output Viterbi algorithm in decoding pairs of messages encoded with convolutional encoders and sent through a two-user binary adder channel in the presence of additive white Gaussian noise. Curves relating bit error rate versus signal to noise ratio are presented for each user, for assessing the performance of distinct convolutional codes when each constituent encoder employs either a two-stage or a three-stage shift-register.
Published
19-11-2017
How to Cite
Alcoforado, M. de L., Bulhões, L., Andrade, A., Madeiro, F., & da Rocha Jr., V. (2017). Data Transmission Using Convolutional Codes and Bi-directional Soft Output Viterbi Algorithm over the Two-User Binary Adder Channel. Journal of Communication and Information Systems, 32(1). https://doi.org/10.14209/jcis.2017.13
Section
Regular Papers

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