An Approach to Discrete Receive Beamforming

Conference: SCC 2013 - 9th International ITG Conference on Systems, Communication and Coding
01/21/2013 - 01/24/2013 at München, Deutschland

Proceedings: SCC 2013

Pages: 6Language: englishTyp: PDF

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Israel, Johannes; Fischer, Andreas (Institute of Numerical Mathematics, Technische Universität Dresden, 01062 Dresden, Germany)

We present an approach for discrete receive beamforming with the aim of approximately maximizing the signalto-interference-plus-noise ratio. For an antenna array the beamforming weights (amplitude and phase) of all array elements are allowed to vary in a given discrete set. This is of practical importance for amplifiers and phase shifters with a discrete resolution. Adapting the Capon method we introduce a discrete optimization problem that can be efficiently solved by a branchand- bound algorithm. Numerical experiments show the capability of this approach.