scholarly journals THE RECURSIVE CONSTANT MODULUS ALGORITHM; A NEW APPROACH FOR MULTI-PATH INTERFERENCE REDUCTION

2001 ◽  
Vol 9 (ASAT Conference, 8-10 May 2001) ◽  
pp. 1-10
Author(s):  
El-Barbary K.
Keyword(s):  
Constant Modulus ◽  
Constant Modulus Algorithm ◽  
New Approach ◽  
Interference Reduction

Improved Constant Modulus Algorithm for Blind Equalization of QAM Signals

2014 ◽  
Vol 631-632 ◽  
pp. 824-829
Author(s):  
Emmanuel Anania Mwangosi ◽  
Cang Yan ◽  
Naveed Ur Rehman
Keyword(s):  
Steady State ◽  
Cost Function ◽  
Error Function ◽  
Constant Modulus ◽  
Constant Modulus Algorithm ◽  
Error Performance ◽  
New Approach ◽  
Slow Convergence ◽  
The Cost ◽  
State Error

The paper present new approach for improving the steady-state error performance of Constant Modulus Algorithm (CMA), it is well known that for higher level modulations such as QAM, CMA does not perform well. Several techniques have been proposed in recent years to deal with slow convergence and MSE performance of CMA. Constellation matched error has been seen to offer best performance by providing the cost function with the knowledge of the constellation symbols. New constellation match error function is studied, simulation is performed, it can be witnessed that 4dB improvement stead state error performance.

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