Algoritmo de Conformação de Feixe Usando Projeção Adaptativa com Restrição Quadrática

Ciro A. Pitz, Eduardo L. O. Batista, Rui Seara

DOI: 10.14209/sbrt.2015.124

Evento: XXXIII Simpósio Brasileiro de Telecomunicações (SBrT2015)

Keywords: Adaptive algorithm adaptive arrays mobile communications beamforming

Abstract

This paper presents a new beamforming algorithm for mobile communication systems. Such an algorithm is developed by modifying the optimization problem used for developing the adaptive-projection constrained stochastic gradient (AP-CSG) algorithm. This modification consists of replacing an affine constraint by a quadratic one. As a result, the proposed algorithm, termed here quadratic AP-CSG (QAP-CSG), provides higher signal-to-interference-plus-noise ratio (SINR) than other similar algorithms from the literature. Simulation results are shown aiming to confirm the effectiveness of the proposed algorithm

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