Results 61 to 70 of about 861 (178)
Performance Analysis of Turbo Codes
Communications, 2013 The article focuses on the performance analyses of Turbo Codes. These codes belong to the group of error correction codes. By their use, it is possible to achieve high system performance.
Jakub Sedy +3 more
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 +2 more
doaj +1 more source
IEEE Access, 2016 An iterative turbo decoder-based cross layer error recovery scheme for compressed video is presented in this paper. The soft information exchanged between two convolutional decoders is reinforced both by channel coded parity and video compression ...
Ryan Perera +3 more
doaj +1 more source
A Fully-Parallel Turbo Decoding Algorithm [PDF]
IEEE Transactions on Communications, 2015 This paper proposes a novel alternative to the Logarithmic Bahl-Cocke-Jelinek-Raviv (Log-BCJR) algorithm for turbo decoding, yielding significantly improved processing throughput and latency. While the Log-BCJR processes turbo-encoded bits in a serial forwards-backwards manner, the proposed algorithm operates in a fully-parallel manner, processing all ...
openaire +3 more sources
Advances in Electrical and Computer Engineering, 2011 This paper analyzes the extrinsic information scaling coefficient influence on double-iterative decoding algorithm for space-time turbo codes with large number of antennas. The max-log-APP algorithm is used, scaling both the extrinsic information in the
TRIFINA, L. +2 more
doaj +1 more source
Implementation and performance of parallellised turbo decoders
IET Communications, 2011 In this study, the authors discuss the implementation of a low latency decoding algorithm for turbo codes and repeat accumulate codes and compare the implementation results in terms of maximum available clock speed, resource consumption, error correction performance and the data (information bit) rate.
Erdin, E., Kilcioglu, C., Yilmaz, A. O.
openaire +2 more sources
EURASIP Journal on Advances in Signal Processing, 2005 Turbo-receivers reduce the effect of the interference-limited propagation channels through the iterative exchange of information between the front-end receiver and the channel decoder.
Leszek Szczeciński +1 more
doaj +1 more source
EURASIP Journal on Advances in Signal Processing, 2006 In this contribution we propose an analogue receiver that can perform turbo detection in MIMO systems. We present the case for a receiver that is built from nonlinear analogue devices, which perform detection in a "free-flow" network (no notion of ...
McNamara Darren +3 more
doaj +1 more source
A MODIFIED UNEQUAL POWER ALLOCATION (UPA) SCHEME FOR PERFORMANCE ENHANCEMENT IN BIT REPETITION TURBO CODES IN HIGH SPEED DOWNLINK PACKET ACCESS (HSDPA) SYSTEM [PDF]
Journal of Engineering Science and Technology, 2015 In this paper, a modified optimal power allocation scheme for different bits in turbo encoder has been proposed to improve the performance of Turbo Codes system in High Speed Downlink Packet Access (HSDPA) service. In a typical turbo code in HSDPA system,
B. BALAMURALITHARA
doaj
Tongxin xuebao, 2006 A new simple iterative channel estimation algorithm for quasi-coherent demodulation Turbo coded GMSK signals was presented. Based on the iterative decoding principle of Turbo code, the algorithm improved the channel esti- mation accuracy using output of ...
WU Tuan-feng, YANG Xi-gen
doaj +2 more sources