Modified Graph-Based Detection Methods for Two-Dimensional Interference Channels

Coding and signal processing for high density granular magnetic recording systems

“…In [23], a soft-input David Mackay inner decoder was concatenated with a BCJR detector to form a detector block that is subsequently integrated with an outer LDPC decoder to simultaneously detect and decode read-back signal over a BPMR channel. In [24], modifications were made to the decoder factor graph to enable joint detection and decoding over a non-binary LDPC coded ISI channel. A more popular approach in the area of joint detection and decoding has been to design a super factor graph [24][25] which represents both the channel and the code and employing the message passing algorithm (MPA) for simultaneous detection and decoding over the super factor graph.…”

“…In [24], modifications were made to the decoder factor graph to enable joint detection and decoding over a non-binary LDPC coded ISI channel. A more popular approach in the area of joint detection and decoding has been to design a super factor graph [24][25] which represents both the channel and the code and employing the message passing algorithm (MPA) for simultaneous detection and decoding over the super factor graph. Factor graph based algorithm for joint detection and decoding can generally be devised in various ways.…”