Blind equalization algorithms such as Constant Modulus Algorithm (CMA) are used to compensate for signal distortion attributed to Intersymbol Interference (ISI) without resorting to training sequence. In QAM signal demodulators, the highest computational load is derived from equalization part. In the process of QAM demodulation, the equalizer’s design is of special importance because it absorbs a large portion of the computation complexity required in the receiver setup.
Papers:
J. R. Treichler, M. G. Larimore, and J. C. Harp. Practical blind demodulators for high-order qam signals. Proceedings of the IEEE, 86(10):1907–1926, Oct 1998.
K. Banovic, E. Abdel-Raheem, and M. A. S. Khalid. A novel radius-adjusted approach for blind adaptive equalization. IEEE Signal Processing Letters, 13(1):37–40, Jan 2006.
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