Reduced Complexity of Perpendicular Magnetic recording channel with Sequential Detector
Jukgree Kotsri, Virasit Imtawil · ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications · 2009
This paper presents the sequential symbol detector based on a modified stack algorithm for reducing the computational complexity in perpendicular magnetic recording channel. We name the proposed algorithm as a stack-based detection algorithm (SBDA). The computational complexity of SBDA is less than that of the conventional symbol detector called Viterbi detector approximately 76% at SNR 23 ㏈. The results also show that the bit error rate performance of the SBDA in magnetic recording channel can be improved without increasing the computational complexity when the channel memory increases.