Performance of turbo codes in overloaded MIMO-OFDM systems using joint decoding

Ilmiawan Shubhi, Yukitoshi Sanada

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

3 Citations (Scopus)

Abstract

In order to support high data rate communications, the third generation partnershIP project (3GPP) long term evolution (LTE) implements multIPle-input multIPle-output (MIMO) systems. In addition, to achieve excellent performance, LTE also employs turbo codes as the forward error correcting (FEC) standard. Although conventional turbo codes give satisfactory performance in the ideal MIMO, significant performance degradation occurs in an overloaded MIMO system when the number of transmit antennas is larger than the number of receive antennas. This paper proposes a joint decoding scheme for turbo codes in overloaded MIMO-OFDM systems. In joint turbo decoding, the calculations of soft information are based on the bit combinations from all of streams. In addition, a super-trellis diagram is used to combine the trellis diagrams. Numerical results obtained through computer simulation show that the proposed scheme achieves better performance by 2.0dB for 4 transmit antennas and 2 receive antennas in the BER of 10-5. The proposed scheme also achieves throughput improvement with the ratio close to the theoretical overloaded MIMO capacity.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages386-390
Number of pages5
Volume2015-June
ISBN (Print)9781479949120
DOIs
Publication statusPublished - 2015 Jun 25
Event2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014 - Washington, United States
Duration: 2014 Sep 22014 Sep 5

Other

Other2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014
CountryUnited States
CityWashington
Period14/9/214/9/5

Fingerprint

Turbo codes
Orthogonal frequency division multiplexing
Decoding
Antennas
Long Term Evolution (LTE)
Throughput
Degradation
Communication
Computer simulation

Keywords

  • Joint Decoding
  • Joint Turbo Decoding
  • Overloaded MIMO-OFDM
  • Spatial MultIPlexing Modulation
  • Turbo Codes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Shubhi, I., & Sanada, Y. (2015). Performance of turbo codes in overloaded MIMO-OFDM systems using joint decoding. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC (Vol. 2015-June, pp. 386-390). [7136195] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PIMRC.2014.7136195

Performance of turbo codes in overloaded MIMO-OFDM systems using joint decoding. / Shubhi, Ilmiawan; Sanada, Yukitoshi.

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 2015-June Institute of Electrical and Electronics Engineers Inc., 2015. p. 386-390 7136195.

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

Shubhi, I & Sanada, Y 2015, Performance of turbo codes in overloaded MIMO-OFDM systems using joint decoding. in IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. vol. 2015-June, 7136195, Institute of Electrical and Electronics Engineers Inc., pp. 386-390, 2014 25th IEEE Annual International Symposium on Personal, Indoor, and Mobile Radio Communication, IEEE PIMRC 2014, Washington, United States, 14/9/2. https://doi.org/10.1109/PIMRC.2014.7136195
Shubhi I, Sanada Y. Performance of turbo codes in overloaded MIMO-OFDM systems using joint decoding. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 2015-June. Institute of Electrical and Electronics Engineers Inc. 2015. p. 386-390. 7136195 https://doi.org/10.1109/PIMRC.2014.7136195
Shubhi, Ilmiawan ; Sanada, Yukitoshi. / Performance of turbo codes in overloaded MIMO-OFDM systems using joint decoding. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. Vol. 2015-June Institute of Electrical and Electronics Engineers Inc., 2015. pp. 386-390
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