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Minimal mean-square error for 3D MIMO beamforming weighting

  • C. Xu
    ,
  • John Cosmas
    ,
  • Yue Zhang
Research Output:
Contribution to journal
Article
 Peer-review

Open access

Abstract

The 3D MIMO beamforming system needs a weighting method to determine the direction of beam whist reducing the interference for other beam areas operating at the same carrier frequency. The challenge is to determine the weights of the 3D MIMO beams to direct each beam towards its cluster of user terminals while placing its nulls at undesired user directions to minimise undesired interference. Therefore, the signal-to-interference-plus-noise ratio should be increased while the interference from the side lobes of the other beams reduced. A weight determining method is presented that constructs horizontal and vertical array weights, respectively, by minimising the mean-square error between the array pattern vector and the unit vector, where the unit vector expresses the desired direction for the array pattern and zero vector expresses the undesired direction. Since the rectangular planar array can be viewed as M linear arrays of N elements, the weight of the M–Nth element can be obtained based on the horizontal and vertical array weights.

Publication Information

Output type

Research Output:
Contribution to journal
Article
 Peer-review

Original language

English

Pages from-to (Number of pages)

Pages 2019-2021

Journal (Volume, Issue Number)

Electronics Letters (Volume 52, Issue 24)

Publication milestones

  • Published - 24/11/2016

Publication status

Published - 24/11/2016

ISSN

0013-5194

Publication IDs

  • handle.net: 10547/622037
  • Scopus: 84997426712

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