Back close

ADMM Based LMS Algorithm for Constant Modulus Signals in AdaptIve Beamforming

Publisher : 2017 14th IEEE India Council International Conference, INDICON 2017

Year : 2018

Abstract :

A new Alternating Direction Method of Multipliers based Least Mean Square-based Constant Modulus Algorithm (LMS-ADMM-CMA) is proposed in this paper. The paper puts forth an optimization framework that enables to do parallel processing of constant modulus signals in blind beamforming scenario. We establish a new formulation of LMS-CMA algorithm for beamforming applying alternating-direction of method of multipliers technique. A performance comparison of LMS-ADMM-CMA and LMS-CMA are experimented and numerical simulations are carried to demonstrate that our LMS-ADMM-CMA outperforms the LMS-CMA in adaptive tracking performance of (non)stationary signals which in turn results better in mean squared deviation and improved weight estimation. © 2017 IEEE.

Admissions Apply Now