Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/129501
Title: A comparison of two coding schemes for generating DC-free runlength-limited sequences
Authors: Wilson, W.Y.H. 
Immink, K.A.S. 
Xi, X.B.
Chong, C.T. 
Keywords: DC-free
Modulation codes
Optical recording
Parity preserving
Runlength-limited
Issue Date: 2000
Source: Wilson, W.Y.H., Immink, K.A.S., Xi, X.B., Chong, C.T. (2000). A comparison of two coding schemes for generating DC-free runlength-limited sequences. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers 39 (2 B) : 815-818. ScholarBank@NUS Repository.
Abstract: We report on the performance assessment of two methods for generating DC-free runlength-limited sequences. Redundant bits used to optimize the low-frequency properties are multiplexed with user data or encoded data. In the first method, the redundant bits are multiplexed with the channel bits generated by a (d, k) encoder. In the second method, on the other hand, the redundant bits are multiplexed with the user data. i.e. prior to application of the (d, k) encoder. The second method can only be used if the (d, k) encoder satisfies the parity preserving condition, i.e., data words and code words of that code must have the same parity. In the article we describe in detail an example of a parity preserving (1, 8) code. © 2000 Publication Board, Japanese Journal of Applied Physics.
Source Title: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
URI: http://scholarbank.nus.edu.sg/handle/10635/129501
ISSN: 00214922
Appears in Collections:Staff Publications

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