Robust interference suppression using a new LMS-based adaptive beamforming algorithm

Ali Hakam, Raed Shubair, Shihab Jimaa, Ehab Salahat

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

7 Scopus citations

Abstract

This paper introduces a robust variable step size NLMS algorithm to improve interference suppression in smart antenna system. This algorithm is able to resolve signals arriving from narrowband sources propagating plane waves close to the array endfire. The results of the fixed step size NLMS will result in a trade-off issue between convergence rate and steady-state MSE of NLMS algorithm. This issue is solved by changing the step size from constant to variable. The proposed VSSNLMS algorithm reduces the mean square error (MSE) and shows faster convergence rate when compared to the conventional NLMS. Moreover, the enhanced performance of the new VSSNLMS algorithm is validated from the output beam pattern which introduces deeper nulls to mitigate the effect of interfering signals.

Original languageBritish English
Title of host publicationMELECON 2014 - 2014 17th IEEE Mediterranean Electrotechnical Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages45-48
Number of pages4
ISBN (Print)9781479923373
DOIs
StatePublished - 2014
Event2014 17th IEEE Mediterranean Electrotechnical Conference, MELECON 2014 - Beirut, Lebanon
Duration: 13 Apr 201416 Apr 2014

Publication series

NameProceedings of the Mediterranean Electrotechnical Conference - MELECON

Conference

Conference2014 17th IEEE Mediterranean Electrotechnical Conference, MELECON 2014
Country/TerritoryLebanon
CityBeirut
Period13/04/1416/04/14

Keywords

  • Beamforming
  • MSE
  • NLMS
  • Smart antenna
  • VSSNLMS

Fingerprint

Dive into the research topics of 'Robust interference suppression using a new LMS-based adaptive beamforming algorithm'. Together they form a unique fingerprint.

Cite this