DocumentCode
2777257
Title
The key-bits in turbo codes and their protections
Author
Weidang, Zhang ; Cong, Yuan ; Lee, Moon Ho ; Rong, Sun ; Xinmei, Wang
Author_Institution
State Key Lab. of ISN, Xidian Univ., Xi´´an, China
Volume
2
fYear
2004
fDate
29-31 March 2004
Firstpage
366
Abstract
The sensitivities of the bits of low weight codewords in turbo codes to noises are discussed firstly and the result is that the lower weight the higher sensitivity. Theoretical analysis shows that through the protections on such key-bits which have high sensitivities; the minimal weight of the codes can be improved apparently. The simulations also give out the supported results: The BER could be highly improved at high Eb/N0 for code rates both 1/3 and 1/2.
Keywords
error statistics; security of data; sensitivity analysis; turbo codes; BER; codewords; key-bits; turbo codes; Bit error rate; Decoding; Error correction; Linear code; Moon; Protection; Sun; Turbo codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Advanced Information Networking and Applications, 2004. AINA 2004. 18th International Conference on
Print_ISBN
0-7695-2051-0
Type
conf
DOI
10.1109/AINA.2004.1283824
Filename
1283824
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