Iterative Signal Detection Scheme Using Multilayer Perceptron for a Bit-Patterned Media Recording System

Applied Sciences

卷:10

Seongkwon Jeong¹  Jaejin Lee¹ 

[1] School of Electronic Engineering, Soongsil University, 369 Sangdo-ro, Dongjak-gu, Seoul 06978, Korea;

关键词: bit-patterned media recording;    iterative decoding;    multilayer perceptron;    signal detection;   

DOI  :  10.3390/app10248819

来源: DOAJ

【 摘 要 】

Because of the physical and engineering problems of conventional magnetic data storage systems, bit-patterned media recording (BPMR) is expected to be a promising technology for extending the storage density to beyond 1 Tb /in². To increase the storage density in BPMR systems, the separation between islands in both down- and cross-track directions must be reduced; this reduction results in two-dimensional interference from neighboring symbols in those directions, which is a major performance degradation factor in BPMR. Herein, we propose an iterative signal detection scheme between a Viterbi detector and a multilayer perceptron to improve the performance of a BPMR system. In the proposed signal detection scheme, we use the modified output of a multilayer perceptron as a priori information to improve equalization and extrinsic information to decrease the effect of intertrack interference.

【 授权许可】

Unknown