Title :
Blind symbol detector for OFDM systems via sequential Monte Carlo filtering
Author :
Yang, Zigang ; Wang, Xiaodong
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX, USA
Abstract :
We consider the application of the sequential Monte Carlo (SMC) methodology to the problem of blind symbol detection in a wireless orthogonal frequency-division multiplexing (OFDM) system over a frequency-selective fading channel. A novel blind SMC detector, built on the techniques of importance sampling and resampling, is developed for differentially encoded OFDM systems. The performance of different schemes of delayed-weight estimation methods is studied.
Keywords :
OFDM modulation; blind equalisers; data communication; differential detection; fading channels; importance sampling; mobile radio; parameter estimation; time-varying channels; blind SMC detector; blind symbol detection; data communications; delayed-weight estimation; differentially encoded OFDM systems; frequency-selective fading channel; importance sampling; mobile wireless channels; orthogonal frequency-division multiplexing; resampling; sequential Monte Carlo method; wireless OFDM system; Delay estimation; Detectors; Filtering; Frequency division multiplexing; Frequency-selective fading channels; Monte Carlo methods; OFDM; Quadrature phase shift keying; Sliding mode control; Statistics;
Conference_Titel :
Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-7147-X
DOI :
10.1109/ACSSC.2001.987026
