Iterative parallel-serial detection structure using MAP algorithm for bit-patterned media recording systems

Abstract

In bit patterned media recording (BPMR) technology, data are stored on the magnetic islands. Thus, for increasing the areal density (AD), we have to reduce the distance between magnetic islands. This makes the islands be influenced by the neighboring islands, which is the two-dimensional (2D) inter-symbol interference (ISI), i.e. the inter-symbol interference (ISI) and inter-track interference (ITI) from the cross-and down-track directions, respectively.