Results 61 to 70 of about 1,502 (171)

Performance for Turbo code on Ricean fading channel

Tongxin xuebao, 2005
For a given channel estimation variance, a new metric for Turbo decoding on Ricean channel was proposed, and a novel formula for channel reliability factor Lc was concluded.
YAO Ru-gui1, WANG Yong-sheng1, XU Juan2
doaj   +2 more sources

Improved Iterative Parallel Interference Cancellation Receiver for Future Wireless DS-CDMA Systems

EURASIP Journal on Advances in Signal Processing, 2005
We present a new turbo multiuser detector for turbo-coded direct sequence code division multiple access (DS-CDMA) systems. The proposed detector is based on the utilization of a parallel interference cancellation (PIC) and a bank of turbo decoders.
Andrea Bernacchioni, Romano Fantacci, Simone Morosi   +2 more
doaj   +1 more source

QFEC ASIP: A Flexible Quad-Mode FEC ASIP for Polar, LDPC, Turbo, and Convolutional Code Decoding

IEEE Access, 2018
In this paper, we extend polar decoding function to our previous design, and propose a flexible quad-mode forward error correction application specific instruction-set processor (QFEC ASIP) that supports polar, low-density parity-check (LDPC), turbo, and
Wan Qiao, Dake Liu, Shaohan Liu
doaj   +1 more source

Turbo equalization and its improvement in BICM-ID based on hard-decision

Tongxin xuebao, 2009
Conventional receivers executed equalization and channel decoding independently. Turbo equalization was a technique which combined equalization and decoding.
ZHAO Chun-hui1, LV Qiang1, BI Wen-bin2
doaj   +2 more sources

PERFORMANCE EVALUATION OF TURBO CODED OFDM SYSTEMS AND APPLICATION OF TURBO DECODING FOR IMPULSIVE CHANNEL [PDF]

ICTACT Journal on Communication Technology, 2010
A comparison of the performance of hard and soft-decision turbo coded Orthogonal Frequency Division Multiplexing systems with Quadrature Phase Shift Keying (QPSK) and 16-Quadrature Amplitude Modulation (16-QAM) is considered in the first section of this ...
Savitha H. M., Muralidhar Kulkarni
doaj  

Threshold Based Iteration Stopping Criterion for Turbo Codes and for Scheme Combining a Turbo Code and a Golden Space-Time Block Code

Advances in Electrical and Computer Engineering, 2014
This paper proposes an iteration stopping criterion for turbo decoding with Benedetto's decoding algorithm based on a posteriori probabilities. This stopping criterion is used in two schemes.
SAVIN, A., TRIFINA, L., ANDREI, M.
doaj   +1 more source

Improved Max-Log-MAP Turbo Decoding by Maximization of Mutual Information Transfer

EURASIP Journal on Advances in Signal Processing, 2005
The demand for low-cost and low-power decoder chips has resulted in renewed interest in low-complexity decoding algorithms. In this paper, a novel theoretical framework for improving the performance of turbo decoding schemes that use the max-log-MAP ...
Karimi Hamid Reza, Claussen Holger, Mulgrew Bernard   +2 more
doaj   +1 more source

Parallelism Efficiency in Convolutional Turbo Decoding

EURASIP Journal on Advances in Signal Processing, 2010
Parallel turbo decoding is becoming mandatory in order to achieve high throughput and to reduce latency, both crucial in emerging digital communication applications. This paper explores and analyzes parallelism techniques in convolutional turbo decoding
Baghdadi Amer, Jézéquel Michel, Muller Olivier   +2 more
doaj  

Efficient Selection of Circular and Random Interleaver for Turbo Codes Multiuser CDMA System with Hadamard Spreading code in AWGN and Rayleigh Fading Channels

Journal of Engineering and Sustainable Development, 2012
Recently, turbo codes have attracted many researchers because of the codes astonishing performance at low signal to noise ratio SNR. The interleaver types and lengths is an important part in the design of a turbo code.
Ghanim Abd AL Kareem
doaj  

Bandwidth-efficient and reliable communication in smart grid systems for modern energy networks using Trellis and Turbo Trellis Coded Modulation. [PDF]

Sci Rep
Ghallab R, Shaheen M, Elkorany AS, El-Feshawy SA.   +3 more
europepmc   +1 more source