Virtual AoA and AoD estimation for sparse millimeter wave MIMO channels

Taejoon Kim, David J. Love

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

In this paper, we investigate an angle of arrival (AoA) and angle of departure (AoD) estimation algorithm for sparse millimeter wave multiple-input multiple-output (MIMO) channels. The analytical channel model whose use we advocate here is the beam space (or virtual) MIMO channel representation. By leveraging the beam space MIMO concept, we characterize probabilistic channel priors under an analog precoding and combining constraints. This investigation motivates Bayesian inference approaches to virtual AoA and AoD estimation. We divide the estimation task into downlink sounding for AoA estimation and uplink sounding for AoD estimation. A belief propagation (BP)-type algorithm is adopted, leading to computationally efficient approximate message passing (AMP) and approximate log-likelihood ratio testing (ALLRT) algorithms. Numerical results demonstrate that the proposed algorithm outperforms the conventional AMP in terms of the AoA and AoD estimation accuracy for the sparse millimeter wave MIMO channel.
Original languageEnglish
Title of host publicationIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
PublisherIEEE
Pages146-150
Volume2015-August
ISBN (Print)9781479919307
DOIs
Publication statusPublished - 27 Aug 2015
Event16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015 - Stockholm, Sweden
Duration: 28 Jun 20151 Jul 2015
http://www.spawc2015.org (unknown)
http://www.spawc2015.org (unknown)

Publication series

Name
Volume2015-August

Conference

Conference16th IEEE International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2015
PlaceSweden
CityStockholm
Period28/06/151/07/15
Internet address

Research Keywords

  • Channel estimation
  • Conferences
  • Estimation
  • Millimeter wave technology
  • MIMO
  • Transmitters
  • Wireless communication

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