Bit-patterned media recording (BPMR) is a promising candidate for application in future magnetic recording systems. To achieve a high areal density in BPMR systems, the distance between bit islands is reduced. However...
详细信息
Bit-patterned media recording (BPMR) is a promising candidate for application in future magnetic recording systems. To achieve a high areal density in BPMR systems, the distance between bit islands is reduced. However, two-dimensional (2-D) interference may occur, including intersymbol interference in the down-track and intertrack interference in the cross track. The overall performance of BPMR is mainly limited by the emergence of 2-D interference in the readback signal. With the staggered-array layout, islands along the neighboring track are displaced by a half period from those on the main track. An island on the main track is primarily affected by the closest islands on the neighboring tracks. To overcome this problem, we introduce an error-correcting 56 modulationcode that matches the structure of staggered-array bit-patterned media. The simulation results show that the system with the 5/6 modulationcode achieves better performance.
暂无评论