On the Constant Modulus Criterion: A New Algorithm

  title={On the Constant Modulus Criterion: A New Algorithm},
  author={A{\"i}ssa Ikhlef and Karim Abed-Meraim and Daniel Le Guennec},
  journal={2010 IEEE International Conference on Communications},
In this paper, we propose a new iterative algorithm for the minimization of the constant modulus (CM) criterion. It is composed of two stages: Prewhitening followed by complex Givens rotations, whence the name Givens CMA (GCMA). Initially, prewhitening reduces the channel matrix into a unitary matrix. Subsequently, this unitary matrix is computed via complex Givens rotations by minimizing the CM criterion. The proposed algorithm provides similar or even better performance than the Analytical… CONTINUE READING

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