New Hybrid Blind Equalization Algorithms

Shun Lan Liu; Lin Wang

doi:10.4028/www.scientific.net/AMM.182-183.1810

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 182-183New Hybrid Blind Equalization Algorithms

New Hybrid Blind Equalization Algorithms

Abstract:

A novel decision-directed Modified Constant Modulus Algorithm (DD-MCMA) was proposed firstly. Then a constellation matched error (CME) function was added to the cost function of DD-MCMA and CME-DD-MCMA algorithm was presented. Furthermore, we improve the CME-DD-MCMA by replacing the fixed step with variable step size, that is VSS-CME-DD-MCMA algorithm. The simulation results show that the proposed new blind equalization algorithms can tremendously accelerate the convergence speed and achieve lower residual inter-symbol interference (ISI) than MCMA, and among the three proposed algorithms, VSS-CME-DD-MCMA has the fastest convergence speed and the lowest residual ISI, but it has the largest computation complexity.

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Applied Mechanics and Materials (Volumes 182-183)

Pages:

1810-1815

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.182-183.1810

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Online since:

June 2012

Authors:

Shun Lan Liu, Lin Wang

Keywords:

Constellation Matched Error (CME), Decision Direction (DD), Modified Constant Modulus Algorithm (MCMA), Residual Inter-Symbol Interference (ISI), Variable Step Size (VSS)

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References

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