A Generalized Write Channel Model for Bit-Patterned Media Recording
  In this paper, we propose a generalized write channel model for bit-patterned media recording by considering all sources of errors causing some extra disturbances during write process, in addition to data dependent write synchronization errors. We investigate information-theoretic bounds for this new model according to various input distributions and also compare it numerically to the last proposed model. 
Sima Naseri, Somaie Yazdani, Behrooz Razeghi, Ghosheh Abed Hodtani
cs.IT math.IT