DocumentCode
392235
Title
Construction of low-rate power-efficient coding schemes and their application to CDMA
Author
Huettinger, Simon ; Huber, Johanna
Author_Institution
Chair of Inf. Transmission, Erlangen-Nurnberg Univ., Erlangen, Germany
Volume
2
fYear
2002
fDate
17-21 Nov. 2002
Firstpage
1021
Abstract
We propose a novel design method, which is an extension to the EXIT charts introduced by ten Brink (see IEE Electronics Letters, vol.35, no.10, p. 806-808, 1999), for low-rate power-efficient codes. An exemplary design of a rate -1/4 code shows more than 1 dB more coding gain than the original turbo-code of rate -1/2. Using this code in a CDMA scheme while reducing the spreading by a factor of 2 helps improving the overall performance of the multi-user scheme significantly.
Keywords
code division multiple access; concatenated codes; convolutional codes; turbo codes; CDMA; EXIT charts; code rate; coding gain; concatenated coding; convolutional codes; low-rate power-efficient coding schemes; multi-user scheme; turbo-code; Convergence; Convolutional codes; Design methodology; Gain; Iterative algorithms; Iterative decoding; Maximum likelihood decoding; Multiaccess communication; Thyristors; Turbo codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference, 2002. GLOBECOM '02. IEEE
Print_ISBN
0-7803-7632-3
Type
conf
DOI
10.1109/GLOCOM.2002.1188349
Filename
1188349
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