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Bayesian block-sparse channel estimation for large-scale MISO-OFDM systems

  • Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This letter studies a new method based on Bayesian variational inference to estimate the sparse channel parameters in large-scale multiple-input-single-output orthogonal frequency division multiplexing (MISO-OFDM) systems. Also, the sparse common support of different channel impulse responses, which results in a block- structured model, is considered. The covariance matrix of the block is introduced in the block-structured model to effectively recover the channel parameters combining with the Bayesian hierarchical structure. Furthermore, variational message-passing (VMP) is applied to slove the problem. The simulation results show that the proposed algorithm outperforms the traditional ones.

Original languageEnglish
Title of host publication2016 IEEE 83rd Vehicular Technology Conference, VTC Spring 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509016983
DOIs
StatePublished - 5 Jul 2016
Event83rd IEEE Vehicular Technology Conference, VTC Spring 2016 - Nanjing, China
Duration: 15 May 201618 May 2016

Publication series

NameIEEE Vehicular Technology Conference
Volume2016-July
ISSN (Print)1550-2252

Conference

Conference83rd IEEE Vehicular Technology Conference, VTC Spring 2016
Country/TerritoryChina
CityNanjing
Period15/05/1618/05/16

Keywords

  • Block sparse
  • Multiple-input-single-output (MISO)
  • OFDM
  • Variational Bayesian inference
  • Variational message-passing (VMP)

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