TY - GEN
T1 - Generalized belief propagation based deliberate bit flipping modulation coding
AU - Bahrami, Mohsen
AU - Vasic, Bane V
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016
Y1 - 2016
N2 - We propose a novel approach to modulation coding using the Generalized Belief Propagation (GBP) algorithm. The idea is to completely eliminate a constrained encoder and, instead, embed a constraint into an error correction codeword by deliberately flipping the bits that violate the constraint. The GBP algorithm is used to keep the number of flipped bits small in order not to overburden the decoder. We incorporate our method to impose the two-dimensional (2D) no isolated bit constraint on a low-density parity check (LDPC) coded 2D data array. Furthermore, we show that the number of flipped bits can be optimized so that it is not beyond the error correcting capability of the code. Applied to Two Dimensional Magnetic Recording (TDMR) systems, our approach results in an order of magnitude gain in the frame error rate.
AB - We propose a novel approach to modulation coding using the Generalized Belief Propagation (GBP) algorithm. The idea is to completely eliminate a constrained encoder and, instead, embed a constraint into an error correction codeword by deliberately flipping the bits that violate the constraint. The GBP algorithm is used to keep the number of flipped bits small in order not to overburden the decoder. We incorporate our method to impose the two-dimensional (2D) no isolated bit constraint on a low-density parity check (LDPC) coded 2D data array. Furthermore, we show that the number of flipped bits can be optimized so that it is not beyond the error correcting capability of the code. Applied to Two Dimensional Magnetic Recording (TDMR) systems, our approach results in an order of magnitude gain in the frame error rate.
KW - Constrained coding
KW - Deliberate bit flipping
KW - Generalized Belief Propagation
KW - Low-density parity check codes
KW - Two Dimensional Magnetic Recording
UR - http://www.scopus.com/inward/record.url?scp=85015432540&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85015432540&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2016.7841858
DO - 10.1109/GLOCOM.2016.7841858
M3 - Conference contribution
AN - SCOPUS:85015432540
T3 - 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings
BT - 2016 IEEE Global Communications Conference, GLOBECOM 2016 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 59th IEEE Global Communications Conference, GLOBECOM 2016
Y2 - 4 December 2016 through 8 December 2016
ER -