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dc.contributor.authorDam, Hai Huyen Heidi
dc.contributor.authorCantoni, A.
dc.contributor.authorLi, Bin
dc.identifier.citationDam, H.H.H. and Cantoni, A. and Li, B. 2015. A fast low complexity method for optimal zero-forcing beamformer MU-MIMO system. IEEE Signal Processing Letters. 22 (9): pp. 1443-1447.

This letter proposes a new algorithm for solving the optimal zero-forcing beamforming problem that maximizes the user achievable rate with restriction on the per-antenna element power constraints. An accelerated gradient method with step size search is proposed for solving the problem. For each iteration of the gradient approach, a quick one dimensional search is employed to obtain the step size. The advantage of the step-size search is that it is relatively fast and requires only a few calculations of the objective function. Design examples show that the proposed algorithm converges faster than the gradient approach and the accelerated gradient approach with a constant step size while achieving a low computational complexity.

dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.titleA fast low complexity method for optimal zero-forcing beamformer MU-MIMO system
dc.typeJournal Article
dcterms.source.titleIEEE Signal Processing Letters
curtin.departmentDepartment of Mathematics and Statistics
curtin.accessStatusFulltext not available

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