TY  - JOUR
T1  - A class of block-iterative equalizers for intersymbol interference channels fixed channel results.
JF  - IEEE Transactions on communications
A1  - Chan, A.M
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217609484053
AB  - A new and efficient class of nonlinear equalizers is developed for intersymbol interference (ISI) channels. These -"iterated-decision equalizers? use an optimized multipass algorithm to successively cancel ISI from a block of received data and generate symbol decisions whose reliability increases monotonically with each iteration. These equalizers have an effective complexity comparable to the decision-feedback equalizer (DFE), yet asymptotically achieve the performance of maximum-likelihood sequence detection (MLSD). We show that, because their structure allows cancellation of both precursor and postcursor ISI, iterated-decision equalizers outperform the minimum mean-square error DFE by 2.507 dB on severe ISI channels even with uncoded systems. Moreover, unlike the DFE, iterated-decision equalizers can be readily used in conjunction with error-control coding, making them attractive for a wealth of applications
KW  - FIR filter.
KW  - ISI cancellation.
KW  - ISI channels.
KW  - MLSD.
KW  - MMSE DFE.
KW  - PAM.
KW  - Bandlimited AWGN channels.
KW  - Block-iterative equalizers.
KW  - Decision-feedback equalizer.
KW  - Discrete-time baseband model.
KW  - Error-control coding.
KW  - Finite impulse response filter.
KW  - Fixed channel results.
KW  - Intersymbol interference channels.
KW  - Iterated-decision equalizers.
KW  - Maximum-likelihood sequence detection.
KW  - Minimum mean-square error DFE.
KW  - Nonlinear equalizers.
KW  - Optimized multipass algorithm.
KW  - Pulse amplitude modulation.
KW  - Symbol decisions.
KW  - Uncoded systems.
ER  -