Fast and low complexity blind equalization via subgradient projections

@article{Erdogan2005FastAL,
  title={Fast and low complexity blind equalization via subgradient projections},
  author={Alper T. Erdogan and Can Kizilkale},
  journal={IEEE Transactions on Signal Processing},
  year={2005},
  volume={53},
  pages={2513-2524}
}
We propose a novel blind equalization method based on subgradient search over a convex cost surface. This is an alternative to the existing iterative blind equalization approaches such as the Constant Modulus Algorithm (CMA), which often suffer from the convergence problems caused by their nonconvex cost functions. The proposed method is an iterative algorithm called SubGradient based Blind Algorithm (SGBA) for both real and complex constellations, with a very simple update rule. It is based on… CONTINUE READING
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