A Generalized Write Channel Model for Bit-Patterned Media Recording

TL;DR

This paper introduces a comprehensive write channel model for bit-patterned media recording that accounts for all error sources, providing theoretical bounds and numerical comparisons to previous models.

Contribution

It presents a generalized model capturing all error sources in bit-patterned media recording, extending previous models and analyzing information-theoretic bounds.

Findings

Derived bounds for the new model under various input distributions

Numerical comparison showing differences with previous models

Enhanced understanding of error impacts in bit-patterned media recording

Abstract

In this paper, we propose a generalized write channel model for bit-patterned media recording by considering all sources of errors causing some extra disturbances during write process, in addition to data dependent write synchronization errors. We investigate information-theoretic bounds for this new model according to various input distributions and also compare it numerically to the last proposed model.