MIMO Detection and Equalization for Single-Carrier Systems Using the Alternating Direction Method of Multipliers

Nuno Souto, Rui Dinis

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

In this letter, a multiple-input multiple-output detection algorithm based on the alternating direction method of the multipliers (ADMM) is proposed for single-carrier transmissions in time dispersive channels. The ADMM is applied as a heuristic to solve the maximum likelihood detection problem for arbitrary signal constellations formulated in the frequency domain. This approach allows most of the decoding steps to be implemented in the frequency domain with an overall reduced complexity cost. Simulation results show that the performances close to the matched filter bound can be attained in large problem sizes, even in overloaded scenarios.

Original languageEnglish
Article number7593341
Pages (from-to)1751-1755
Number of pages5
JournalIEEE Signal Processing Letters
Volume23
Issue number12
DOIs
Publication statusPublished - 1 Dec 2016

Keywords

  • Alternating direction method of the multipliers (ADMM)
  • multiple-input multiple-output (MIMO) detection
  • nonconvex optimization
  • Single Carrier-Frequency domain equalization (SC-FDE)

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