Near-ML lattice reduction-aided detection scheme for low complexity MIMO-OFDM systems

Hyukyeon Lee, Hyunsub Kim, Jaeseok Kim

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

1 Citation (Scopus)

Abstract

In this paper, we propose a novel lattice reduction (LR) algorithm for the low-complexity multiple-input multiple-output (MIMO) detection with near-maximum-likelihood (ML) performance. The proposed LR algorithm is designed considering both the hardware complexity and the power consumption. First, a modified column traverse strategy is proposed to reduce the worst-case complexity (hardware complexity). Also, in order to reduce the average complexity (power consumption), we focus on the joint optimization by employing the early termination (ET) criterion in the context of MIMO detection, whereas the conventional approaches are based exclusively on channel characteristics. In order to make it possible for the LR-aided fixed-complexity sphere detector (FSD) to perform the partial detection, the LR process is thoroughly modified so that the ET criterion is able to be employed. Furthermore, we perform the joint optimization of these two approaches. The experimental results demonstrate that the worst-case and average complexity is reduced considerably maintaining the near-ML BER performance at the BER of 105

Original languageEnglish
Title of host publication2017 40th International Conference on Telecommunications and Signal Processing, TSP 2017
EditorsNorbert Herencsar
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages156-160
Number of pages5
ISBN (Electronic)9781509039821
DOIs
Publication statusPublished - 2017 Oct 19
Event40th International Conference on Telecommunications and Signal Processing, TSP 2017 - Barcelona, Spain
Duration: 2017 Jul 52017 Jul 7

Publication series

Name2017 40th International Conference on Telecommunications and Signal Processing, TSP 2017
Volume2017-January

Conference

Conference40th International Conference on Telecommunications and Signal Processing, TSP 2017
CountrySpain
CityBarcelona
Period17/7/517/7/7

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

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    Lee, H., Kim, H., & Kim, J. (2017). Near-ML lattice reduction-aided detection scheme for low complexity MIMO-OFDM systems. In N. Herencsar (Ed.), 2017 40th International Conference on Telecommunications and Signal Processing, TSP 2017 (pp. 156-160). (2017 40th International Conference on Telecommunications and Signal Processing, TSP 2017; Vol. 2017-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/TSP.2017.8075958