Results 301 to 310 of about 2,501,833 (347)
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Analysis of Circular Buffer Rate Matching for LTE Turbo Code
IEEE Vehicular Technology Conference, 2008This paper discusses circular buffer rate matching (CBRM) algorithms for the turbo code in the long term evolution (LTE) of the WCDMA-based air interface. To enhance performance at high code rates, systematic bit puncturing is incorporated in conjunction
Jung-Fu Cheng +4 more
semanticscholar +1 more source
Study on Turbo Code for Multicarrier Underwater Acoustic Communication
International Conference on Wireless Communications, Networking and Mobile Computing, 2008Turbo code is proposed for underwater acoustic communication (UWA) based on orthogonal frequency division multiplexing (OFDM). In this paper, performance of turbo code under different modulations are studied and simulated.
Xiaoka Xu +4 more
semanticscholar +1 more source
Recent Advances in Turbo Code Design and Theory
Proceedings of the IEEE, 2007The discovery of turbo codes and the subsequent rediscovery of low-density parity-check (LDPC) codes represent major milestones in the field of channel coding.
B. Vucetic +3 more
semanticscholar +1 more source
Improved algorithms for the determination of turbo-code weight distributions
IEEE Transactions on Communications, 2005We discuss algorithms for determining exactly the lower terms of the weight distribution of a turbo code. Several improvements on the recently introduced algorithm by Garello et al. are outlined.
E. Rosnes, Øyvind Ytrehus
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Block turbo code performances for long-haul DWDM optical transmission systems
Optical Fiber Communication Conference. Technical Digest Postconference Edition. Trends in Optics and Photonics Vol.37 (IEEE Cat. No. 00CH37079), 2000We present the performance of a foward error correction (fec) scheme for submarine transmission systems using Block turbo code. The decoding is based on soft decoding and soft decision.
Omar Ait, Vincent Lemaire
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2000 IEEE International Symposium on Information Theory (Cat. No.00CH37060), 2002
This paper describes a new class of codes, chaotic turbo codes. They were born from a symbiosis between a chaotic digital encoder and a turbo code. This paper investigates the most important properties of both chaotic digital encoders and turbo encoders in order to understand how the two complement each other.
A. Guidi +2 more
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This paper describes a new class of codes, chaotic turbo codes. They were born from a symbiosis between a chaotic digital encoder and a turbo code. This paper investigates the most important properties of both chaotic digital encoders and turbo encoders in order to understand how the two complement each other.
A. Guidi +2 more
openaire +2 more sources
The effects of channel characteristics on turbo code performance
Proceedings of MILCOM '96 IEEE Military Communications Conference, 1996Turbo codes provide greater coding gain than commonly used convolutional codes. The maximum a-posteriori turbo decoder, unlike the Viterbi decoder often used for convolutional codes, explicitly uses E/sub b//N/sub 0/ as a parameter in the decoding ...
M. Jordan, R. Nichols
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Proceedings of MILCOM '95, 2002
We introduce multiple turbo codes and a suitable decoder structure derived from an approximation to the maximum a posteriori probability (MAP) decision rule, which is substantially different from the decoder for two-code-based encoders. We developed new rate 1/3 and 2/3 constituent codes to be used in the turbo encoder structure.
Dariush Divsalar, F. Pollara
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We introduce multiple turbo codes and a suitable decoder structure derived from an approximation to the maximum a posteriori probability (MAP) decision rule, which is substantially different from the decoder for two-code-based encoders. We developed new rate 1/3 and 2/3 constituent codes to be used in the turbo encoder structure.
Dariush Divsalar, F. Pollara
openaire +2 more sources
Improved decoding with the SOVA in a parallel concatenated (Turbo-code) scheme
International Conference on Communications, 1996We show that the soft output of the soft-output Viterbi-decoder (SOVA) suffers from two distortions. Firstly, for bad channels the reliability information of the decoder output is too optimistic.
L. Papke +2 more
semanticscholar +1 more source
IEEE Journal of Selected Topics in Quantum Electronics, 2004
The first experimental demonstration of a forward error correction (FEC) for 10-Gb/s optical communication systems based on a block turbo code (BTC) is reported.
T. Mizuochi +11 more
semanticscholar +1 more source
The first experimental demonstration of a forward error correction (FEC) for 10-Gb/s optical communication systems based on a block turbo code (BTC) is reported.
T. Mizuochi +11 more
semanticscholar +1 more source