Results 251 to 260 of about 3,817,942 (325)

Improving turbo code error performance by multifold coding

IEEE Communications Letters, 2002
B Honary
exaly   +2 more sources

A new class of asymmetric turbo code for 3G systems

AEU - International Journal of Electronics and Communications, 2006
M U Siddiqi
exaly   +2 more sources

Nonsystematic Turbo Codes

IEEE Transactions on Communications, 2005
In this paper, we introduce the concept of nonsystematic turbo codes and compare them with classical systematic turbo codes. Nonsystematic turbo codes can achieve lower error floors than systematic turbo codes because of their superior effective free distance properties.
Adrish Banerjee, Francesca Vatta, Bartolo Scanavino, Daniel J. Costello Jr.   +3 more
openaire   +2 more sources

Laminated turbo codes

Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
In this paper we introduce a new coding scheme - so-called laminated turbo codes. It is characterized by a block-convolutional structure that enables us to combine the advantages of a convolutional encoder memory and a block-oriented decoding method. We show that this block-convolutional structure is superior in terms of its error correction capability
Huebner, A., Lentmaier, M., Zigangirov, K. Sh., Costello, Jr., D.,   +3 more
openaire   +2 more sources

DeepSeek-Coder-V2: Breaking the Barrier of Closed-Source Models in Code Intelligence

arXiv.org
We present DeepSeek-Coder-V2, an open-source Mixture-of-Experts (MoE) code language model that achieves performance comparable to GPT4-Turbo in code-specific tasks. Specifically, DeepSeek-Coder-V2 is further pre-trained from an intermediate checkpoint of
DeepSeek-AI, Qihao Zhu, Daya Guo, Zhihong Shao, Dejian Yang, Peiyi Wang, Runxin Xu, Y. Wu, Yukun Li, Huazuo Gao, Shirong Ma, Wangding Zeng, Xiao Bi, Zihui Gu, Hanwei Xu, Damai Dai, Kai Dong, Liyue Zhang, Y. Piao, Zhibin Gou, Zhenda Xie, Zhewen Hao, Bing-Li Wang, Jun-Mei Song, Deli Chen, Xin Xie, Kang Guan, Yu-mei You, A. Liu, Qiushi Du, Wenjun Gao, Xuan Lu, Qinyu Chen, Yaohui Wang, C. Deng, Jiashi Li, Chenggang Zhao, C. Ruan, Fuli Luo, W. Liang   +39 more
semanticscholar   +1 more source

Turbo coded BLAST

Proceedings of the IEEE Information Theory Workshop, 2003
In this paper we investigate turbo coding for BLAST (Bell Labs layered space-time) by encoding single user data streams and transmitting the symbols in different antennas. At the receiver we adopt an MMSE nulling, incremental decoding and soft cancellation approach to decode the symbols.
openaire   +1 more source

Iterative MAP decoding of turbo coded OOK and turbo coded BPPM

GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002
Infrared wireless communication and optical communication usually adopt on-off keying (OOK) and pulse position modulation (PPM). In this paper, we present iterative maximum a posteriori probability (MAP) decoding of Turbo coded OOK and Turbo coded binary PPM (BPPM).
Naotake Yamamoto, Tomoaki Ohtsuki
openaire   +1 more source

Improved Low Complexity Hybrid Turbo Code: A Modified Turbo Code

2009 Second International Conference on Emerging Trends in Engineering & Technology, 2009
Turbo Convolutional Codes (TCC) are excellent error correcting codes as they show near Shannon capacity performance in communication systems. However, Turbo decoders are computationally complex. Recently, a class of modified Turbo codes called Low Complexity Hybrid Turbo Codes (LCHTC) is proposed with Bit Error Rate (BER) which is almost same as that ...
Archana Bhise, Prakash D. Vyavahare
openaire   +1 more source

Aspects of interleaving for turbo codes

2013 International Conference on ICT Convergence (ICTC), 2013
In this letter, we present some aspects of bit interleaving schemes applicable for turbo codes with block and convolutional codes as their component codes. A bit interleaving scheme across inter-codewords can be used to increase the performance of the codes when a block of correlated channel information exits in a codeword.
Saleem Ahmed, Meixiang Zhang, Sooyoung Kim 0001, Won-Yong Kim, Yong-Hoon Cho   +4 more
openaire   +1 more source

A note on asymmetric turbo-codes

IEEE Communications Letters, 1999
Little attention has been devoted in the literature to turbo-codes with nonidentical component codes. However, in order to optimize the performance of parallel concatenated schemes with respect to both the so called "error-floor" and the "waterfall" regions, the idea has certain advantages.
Oscar Y. Takeshita, Oliver M. Collins, Peter C. Massey, Daniel J. Costello Jr.   +3 more
openaire   +1 more source