Title :
Adaptive blind channel equalization based on constellation information of MPSK signal
Author :
Gu, Nong ; Xiang, Yong ; Tan, Min ; Cao, Zhiqiang
Author_Institution :
SChool of Eng. & Technol., Deakin Univ., Geelong, Vic.
Abstract :
In this paper, we propose a new adaptive algorithm for the blind equalization of an FIR (finite impulse response) channel excited by an M-ary phase shift keying (MPSK) signal. Different from the conventional constant modulus algorithm (CMA), which exploits the amplitude information of the input signal, the proposed algorithm exploits the full constellation information of the input signal. Theoretical analysis shows that the new algorithm has less mean square error (MSE), namely better equalization performance, in steady state than the CMA. Numerical simulations show the effectiveness of the new algorithm
Keywords :
adaptive equalisers; blind equalisers; mean square error methods; phase shift keying; telecommunication channels; FIR channel; M-ary phase shift keying signal; MPSK signal; MSE; adaptive blind channel equalization; constant modulus algorithm; constellation information; finite impulse response channel; mean square error; Adaptive algorithm; Adaptive equalizers; Algorithm design and analysis; Blind equalizers; Constellation diagram; Finite impulse response filter; Mean square error methods; Performance analysis; Phase shift keying; Steady-state;
Conference_Titel :
Industrial Technology, 2005. ICIT 2005. IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-9484-4
DOI :
10.1109/ICIT.2005.1600626
