R&D: Three-Track Detection Using Multilayer Perceptron for Dual-Layer Bit-Patterned Magnetic Recording Systems

IEEE Transactions on Magnetics has published an article written by Santi Koonkarnkhai, Siriphon Plotchu, Warunee Martnok, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, Thailand, Natthakan Rueangnetr, School of Integrated Innovation Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand, Sathapath Kilaso, College of Innovation and Management, Suan Sunandha Rajabhat University, Bangkok, Thailand, Piya Kovintavewat, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom, Thailand, and Chanon Warisarn, School of Integrated Innovation Technology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand.

Abstract: “This paper proposes a multilayer perceptron (MLP)-based three-track detection method for dual-layer bit-patterned magnetic recording (BPMR) systems. Three different MLP architectures are explored and evaluated, namely, 1) a single MLP detecting all three tracks simultaneously, 2) three MLPs, each detecting one track independently, and 3) two MLPs dedicated to upper and lower recording layers. Simulation results show that the proposed MLP-based systems outperform the conventional partial-response maximum-likelihood detection scheme, particularly under severe interferences and high areal density. Among the proposed systems, the two-MLP architecture offers the optimal balance between detection accuracy and computational complexity, making it the most promising solution for future high-density magnetic recording systems.“