Multi-track 2D joint signal detection and decoding for TDMR system using single parity-check coding

• Published in: 2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE) pp. 1 - 6
• Main Authors: Almustapha, Mohammed D., Ahmed, Mohammed Z., Ambroze, Marcel A., Abdulrazaq, Muhammad B.
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-04-2017
• Subjects: 2D detection; 2D equalization; Bahl Cocke Jelinek Raviv (BCJR) algorithm; Decoding; Detectors; dithered relative prime (DRP) interleaver; Encoding; Interference; Magnetic recording; Media; Parity-check code; Two dimensional displays
• DOI: 10.1109/CCECE.2017.7946623

A combination of single parity check-code and Two-Dimensional (2D) Bahl Cocke Jelinek Raviv (BCJR) detector is used in this paper for joint detection and decoding of 2D interference channel. This is applied to a multi-track two dimensional magnetic recording (TDMR) system. The multi-level 2D BCJR detector handled the code constraint while performing joint detection and single parity decoding. Two coding approaches are presented in this paper: 1) parity bits are applied along-track direction only, separated with a dithered relative prime (DRP) interleaver, and 2) parity bits are applied in both along-track and across-tracks directions. The results show that the new constrained coded multi-track 2D BCJR joint detector provides improved performance with low detection complexity.