Performance Evaluation of Serially Concatenated Turbo Coding in Perpendicular Magnetic Recording

Abstract

Performance of serially concatenated turbo coding systems using various RLL codes is evaluated along with that of PRML systems. Error rates of these systems are experimentally estimated by an actual R/W channel using a spinstand with a double-layered perpendicular medium. The experimental results show that EPR3ML and E^2PR3ML systems give the best performance among PRML systems and PR1 system provides the best performance among RLL coded serially concatenated turbo coding system. Results also show that 32/33(0, 6)code exhibits the best performance among RLL codes.