Performance comparisons of MSN codes for multi-track magnetic recording systems

We consider the coding for multi-track magnetic recording systems. We provide analytical results related to uncoded and coded multi-track systems which constitute the basis of the code construction. We have designed matched spectral null codes for multi-track recording systems which give coding gains from 3 dB to 4.8 dB over uncoded systems. We also provide the performance comparisons of such codes under various receiver (head) topologies.