Results 141 to 150 of about 861 (178)
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Turbo decoding for generalized channels
IEEE Global Telecommunications Conference, 2004. GLOBECOM '04., 2005We propose a turbo decoding framework in the presence of insertions and deletions as well as substitutions in the received sequence. The decoding algorithm is based on the Viterbi algorithm for this special channel. The synchronization information is exchanged between decoders in the proposed structure and extrinsic information is used, as is commonly ...
Mohamed F. Mansour, Ahmed H. Tewfik
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Interative (“turbo”) decoding of threshold decodable codes
European Transactions on Telecommunications, 1995AbstractIn this paper we extend the idea of iterative decoding of two‐dimensional systematic convolutional codes ‐ so‐called “turbo” codes ‐ to threshold decoding. A threshold decoding algorithm is presented which uses soft information from the channel and a priori values in order to generate soft outputs.
Sven Riedel, Yuri V. Svirid
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Turbo STFC decoding with the Zero Forcing decoder
IEEE Africon '11, 2011In this paper, a method for the joint decoding of a MIMO system using apriori information in conjunction with the Zero-Forcing decoder is presented. The proposed method is compared with an existing method based on receive vector translation. It is shown that both methods perform similarly in the case of the Zero-Forcing decoder.
Philip R. Botha, Bodhaswar T. Maharaj
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Stochastic models for turbo decoding
IEEE International Conference on Communications, 2005. ICC 2005. 2005, 2005This paper proposes a stochastic framework for modelling and analysis of turbo decoding. By modelling the input and output signals of a turbo decoder as random processes, we prove that these signals become ergodic when the code block size becomes very large.
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A Low-Complexity Scheduling for Turbo Equalization with Turbo Decoding
2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring, 2007A novel scheduling for turbo equalization with turbo decoding is proposed. The use of turbo codes associated to turbo equalizers has been frequently investigated in the literature. The conventional turbo equalizer with turbo decoding consists of a soft input soft output equalizer cooperating with a turbo decoder. In this way, the turbo decoder performs
André Fonseca dos Santos +2 more
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Improvements in Turbo Decoding
IETE Journal of Research, 2002In recent years iterative concatenated decoding has regained popularity starting with the remarkable results presented in a paper by a group of French researchers. They introduced a new family of convolutional codes, nicknamed "Turbo codes" due to its resemblance with the turbo engine.
Bhuwanendra Kumar, Vishwanath Sinha
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The Ninth International Conference onCommunications Systems, 2004. ICCS 2004., 2004
Recently, turbo code has gathered much attention for its outstanding performance. Many literatures have been published on algorithm and applications of turbo code. However, there is little progress on the decoding mechanism of turbo decoder. In this paper we propose an asymmetry AWGN (additive white Gaussian noise channel) model.
Xiaobo Jiang
exaly +2 more sources
Recently, turbo code has gathered much attention for its outstanding performance. Many literatures have been published on algorithm and applications of turbo code. However, there is little progress on the decoding mechanism of turbo decoder. In this paper we propose an asymmetry AWGN (additive white Gaussian noise channel) model.
Xiaobo Jiang
exaly +2 more sources
Turbo decoding on tailored OpenCL processor
2013 9th International Wireless Communications and Mobile Computing Conference (IWCMC), 2013Turbo coding is commonly used in the current wireless standards such as 3G and 4G. However, due to the high computational requirements, its software-defined implementation is challenging. This paper proposes a static multi-issue exposed datapath processor design tailored for turbo decoding.
Heikki Kultala +7 more
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Reconfigurable turbo decoding for 3G applications
Signal Processing, 2004Software radio and reconfigurable systems represent reconfigurable functionalities of the radio interface. Considering turbo decoding function in battery-powered devices like 3GPP mobile terminals, it would be desirable to choose the optimum decoding algorithm: SOVA in terms of latency, and log-MAP in terms of performance.
Costas Chaikalis, James M. Noras
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Interleaver for High Parallelizable Turbo Decoder
2007In this paper a new interleaver is proposed as turbo codes intern interleaver. This interleaver designed from shifted identity matrices has been developed to facilitate implementation of parallelized turbo decoding. The structure is first illustrated and then, implementation aspects are discussed.
Boher, Laurent +3 more
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