Results 51 to 60 of about 184,562 (108)
An iterative decoding scheme for serially concatenated convolutional codes
Proceedings of 1995 IEEE International Symposium on Information Theory, 2002 We present an iterative soft-output decoding algorithm for serially concatenated convolutional codes which has better performance than the conventional noniterative decoding algorithm. The proposed Viterbi decoding scheme can be used whenever some form of serial concatenation of encoders and channels with memory is applied.
Mohamed Siala +3 more
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Cooperative coding using serial concatenated convolutional codes
IEEE Wireless Communications and Networking Conference, 2005, 2005 The paper presents a novel cooperative coding scheme using punctured serial concatenated convolutional codes (SCCC). We evaluate its performance in terms of frame error rate (FER) under two cooperation protocols: a decode-and-forward protocol in conjunction with automatic repeat request (ARQ), by which the relay sends an acknowledge bit (ACK) back to ...
Yang Cao, B.R. Vojcic
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Analysis of iterative decoding for serial concatenated convolutional codes
Vehicular Technology Conference Fall 2000. IEEE VTS Fall VTC2000. 52nd Vehicular Technology Conference (Cat. No.00CH37152), 2002 Turbo codes include two kinds of encoding schemes, one is parallel concatenated convolutional codes (PCCC), and another is serial concatenated convolutional codes (SCCC). The SCCC can get better performance than PCCC. The analysis of acquirement of some information for SCCC decoding computation, which is different from PCCC, are presented. Finally, the
Weidong Wang, Chunlong Bai, Ping Zhang
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Performance of serially concatenated convolutional turbo codes for magnetic recording
IEEE Transactions on Magnetics, 2000 Performance of serially concatenated convolutional turbo codes has been evaluated for the Lorentzian channel using simulation, and experimentally for a real hard disk drive. The experimental results are consistent with simulations, which show a substantial gain over uncoded systems.
Yunxiang Wu +4 more
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An improved design and SOVA algorithm for serial concatenated convolutional code
WCC 2000 - ICCT 2000. 2000 International Conference on Communication Technology Proceedings (Cat. No.00EX420), 2002 Serial concatenated code (SCC) has attracted lots of attention by its excellent performance when employing an iterative decoder. However, the previous research shows that it can obtain good performance only with excessive processing delay. It is analyzed that the decoding structure is the key point of its performance's convergence, as well as the ...
Lei Wan, Kuang Jing-ming
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Serially concatenated codes with euclidean geometry LDPC and convolutional codes
2012 IEEE International Conference on Communication Systems (ICCS), 2012 This paper presents a new scheme of serially concatenated codes. It is formed by a combination of Euclidean Geometry (EG) Low Density Parity Check (LDPC) and Recursive Systematic Convolutional (RSC) codes linked by the row-column interleaver. A modification is proposed on the interleaver, which improves performance of concatenated codes.
Sina Vafi, Huu Dung Pham
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Serial concatenation of convolutional code and low rate orthogonal convolutional code [PDF]
Proceedings of IEEE International Symposium on Information Theory, 2002 A novel low rate orthogonal code which is the serial concatenation of convolutional code and orthogonal convolutional code is proposed for high capacity CDMA systems. The BER performance is good and shows no "error floor" phenomenon.
H. Imai, Jifeng Li
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Design of punctured serially concatenated convolutional codes
IEEE Communications Letters, 2005An effective algorithm for the design of punctured serially concatenated convolutional codes (SCCCs) is proposed. The algorithm is based on the density evolution technique, and its main goal is to design a code matching the outer and the inner encoder in order to reduce the bit error rate (BER) in the SNR operating region ranging from the waterfall to ...
Laddomada, Massimiliano, Scanavino, B.
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On cycle-based permutor designs for serially concatenated convolutional codes
IEEE International Symposium on Information Theory, 2003. Proceedings., 2003 A. Huebner +2 more
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Rate-compatible punctured serial concatenated convolutional codes
GLOBECOM '03. IEEE Global Telecommunications Conference (IEEE Cat. No.03CH37489), 2004We propose and compare some good rate-compatible serial concatenated convolutional code (SCCC) families. To obtain rate-compatible SCCCs, the puncturing is limited to inner coded bits. However, and this is the novelty proposed, we do not limit the puncturing to inner parity bits only, but we extend it also to inner systematic bits, thus obtaining ...
BABICH, FULVIO +2 more
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