Title :
(4, 20) runlength limited modulation code for high density storage system
Author :
Kim, Min-Goo ; Lee, Jae Hong
Author_Institution :
Dept. of Electron. Eng., Seoul Nat. Univ., South Korea
Abstract :
In magnetic and optical storage systems, RLL (run length limited) modulation code is widely used. An RLL code having a limited amount of error propagation and high density ratio is attractive for high density storage system. This paper presents a new fixed-length RLL modulation code with d=4 and k=20, and code rate m/n=4/11. The code design is based on the look-ahead method. This code has finite error propagation limited to at most two codewords
Keywords :
digital storage; magnetic storage; modulation coding; optical storage; runlength codes; code design; code rate; codewords; error propagation; fixed-length RLL modulation code; high density ratio; high density storage system; look-ahead method; magnetic storage systems; optical storage systems; runlength limited modulation code; Binary sequences; Data storage systems; Decoding; Delay; Error correction codes; Hardware; Magnetic modulators; Modulation coding; Optical modulation; Optical propagation;
Conference_Titel :
Information Theory, 1995. Proceedings., 1995 IEEE International Symposium on
Conference_Location :
Whistler, BC
Print_ISBN :
0-7803-2453-6
DOI :
10.1109/ISIT.1995.531876
