Low Complexity Joint OMP Methods for FDD Channel Estimation in Massive MIMO Systems

Navneet Garg, Mathini Sellathurai, Tharmalingam Ratnarajah

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

Abstract

The downlink channel estimation techniques in FDD (frequency-division-duplex) massive MIMO (multiple-input multiple-output) systems rely upon the spatial reciprocity to obtain the spatial information of the multi-path channel. In this paper, we investigate the low-complexity algorithm based on the Newtonized orthogonal matching pursuit (NOMP) algorithm. Towards that, we first derive an NOMP approach for joint parameters updates. Further, to reduce the computational overhead of the updates, we relax the Hessian to be block diagonal. Simulations demonstrate that the both algorithms achieve an approximately similar performance as compared to the recent approach in [1], while incurring lower overheads.

Original languageEnglish
Title of host publication2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
PublisherIEEE
ISBN (Electronic)9781728154787
DOIs
Publication statusPublished - 3 Aug 2020
Event21st IEEE International Workshop on Signal Processing Advances in Wireless Communications 2020 - Atlanta, United States
Duration: 26 May 202029 May 2020

Publication series

NameIEEE Workshop on Signal Processing Advances in Wireless Communications
ISSN (Electronic)1948-3252

Conference

Conference21st IEEE International Workshop on Signal Processing Advances in Wireless Communications 2020
Abbreviated titleSPAWC 2020
CountryUnited States
CityAtlanta
Period26/05/2029/05/20

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Information Systems

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  • Cite this

    Garg, N., Sellathurai, M., & Ratnarajah, T. (2020). Low Complexity Joint OMP Methods for FDD Channel Estimation in Massive MIMO Systems. In 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC) [9154302] (IEEE Workshop on Signal Processing Advances in Wireless Communications). IEEE. https://doi.org/10.1109/SPAWC48557.2020.9154302