Evaluation of detection algorithms for perpendicular recording channels with intertrack interference

Channel detection algorithms for handling intertrack interference (ITI) in perpendicular magnetic recording channels are studied in this paper. The goal is to optimize channel detection to attain the best possible performance for a practical system. Two channel detection models, namely, the single-track model and the joint-track model are evaluated using information rate analysis as well as simulations. Numerical results show that joint-track detection may be needed when ITI is severe.