DocumentCode
1224360
Title
Quantifying information rate increase by constrained codes for recording channels with media noise
Author
Zhang, Zheng ; Duman, T.M. ; Kurtas, E.M.
Author_Institution
Dept. of Electr. Eng., Arizona State Univ., Tempe, AZ, USA
Volume
39
Issue
11
fYear
2003
fDate
5/29/2003 12:00:00 AM
Firstpage
852
Lastpage
854
Abstract
The achievable information rates for magnetic recording channels with media noise, when constrained codes are employed, are computed. It is shown that higher information rates can be achieved by using specific constrained codes compared to the unconstrained system with independent identically distributed (i.i.d.) equiprobable binary inputs. The results are compared with the optimised information rates of such channels over general Markov inputs.
Keywords
AWGN channels; channel capacity; intersymbol interference; magnetic recording noise; perpendicular magnetic recording; runlength codes; AWGN; consecutive transition limited codes; constrained codes; general Markov inputs; independent identically distributed equiprobable binary inputs; information rate increase; intersymbol interference; magnetic recording channels; media noise; optimised information rates; perpendicular recording channels; recording channels; run-length limited codes;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20030561
Filename
1207233
Link To Document