TY - JOUR
T1 - Charge-constrained (0, G/I\ C) sequences
AU - Lin, Yinyi
AU - Liu, Pi Hai
N1 - Funding Information:
Paper approved by S. G. Wilson, the Editor for Coding Theory and Applications of the IEEE Communications Society. Manuscript received September 15, 1996. This work was supported by the National Science Council, R.O.C., under Contract NSC 84-2213-E-008-020. This paper was presented in part at the IEEE International Symposium on Communications, Taipei, Taiwan, December 1995.
PY - 1997
Y1 - 1997
N2 - A (0, G/I) code is a modulation code used in the PRML recording system in which G and / represent the maximum number of zeros between two consecutive ones in the global sequence and the interleaved subsequences, respectively. For some magnetic recording systems such as the one with a helical scanning rotary head, a de-balanced write waveform is required to meet channel requirements. In this study, charge-constrained (0, G/I; C) sequences which can generate a de-balanced write waveform are investigated, where C represents the upper bound of charge. Based upon the runlength subgraphs and the transition matrices, capacities and power spectra of (0, G/I; C) sequences are derived and computed. Index Terms- Capacity, modulation code, partial-response maximum-likelihood recording, runlength graph.
AB - A (0, G/I) code is a modulation code used in the PRML recording system in which G and / represent the maximum number of zeros between two consecutive ones in the global sequence and the interleaved subsequences, respectively. For some magnetic recording systems such as the one with a helical scanning rotary head, a de-balanced write waveform is required to meet channel requirements. In this study, charge-constrained (0, G/I; C) sequences which can generate a de-balanced write waveform are investigated, where C represents the upper bound of charge. Based upon the runlength subgraphs and the transition matrices, capacities and power spectra of (0, G/I; C) sequences are derived and computed. Index Terms- Capacity, modulation code, partial-response maximum-likelihood recording, runlength graph.
UR - http://www.scopus.com/inward/record.url?scp=0031257157&partnerID=8YFLogxK
U2 - 10.1109/26.634681
DO - 10.1109/26.634681
M3 - 期刊論文
AN - SCOPUS:0031257157
SN - 0090-6778
VL - 45
SP - 1183
EP - 1191
JO - IEEE Transactions on Communications
JF - IEEE Transactions on Communications
IS - 10
ER -