Results 31 to 40 of about 13,641 (300)
From maximum likelihood to iterative decoding [PDF]
2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011 Iterative decoding is considered in this paper from an optimization point of view. Starting from the optimal maximum likelihood decoding, a (tractable) approximate criterion is derived. The global maximum of the approximate criterion is analyzed: the maximum likelihood solution can be retrieved from the approximate criterion in some particular cases ...
Alberge, Florence +2 more
openaire +2 more sources
Correcting Suboptimal Metrics in Iterative Decoders [PDF]
2009 IEEE International Conference on Communications, 2009 In this paper the issue of improving the performance of iterative decoders based on sub-optimal calculation of the messages exchanged during iterations (L-values) is addressed. It is well known in the literature that a simple-yet very effective-way to improve the performance of suboptimal iterative decoders is based on applying a scaling factor to the ...
Alex Alvarado +3 more
openaire +2 more sources
Optimum non-iterative turbo-decoding [PDF]
Proceedings of 8th International Symposium on Personal, Indoor and Mobile Radio Communications - PIMRC '97, 2002 By observing the structure of the decoder's trellis a new, non-iterative turbo-decoder based on a super-trellis structure is proposed, which exhibits the same decoding complexity as a conventional convolutional decoder possessing an identical number of trellis states.
Marco Breiling, Lajos Hanzo
openaire +1 more source
Iterative decoding convergence and termination of serially concatenated codes [PDF]
, 2010 In this paper we demonstrate that previously proposed serially concatenated codes only facilitate iterative decoding convergence towards points that are near but not at the top-right hand corner of the EXIT chart, which typically results in an error ...
Hanzo, L., Maunder, R. G.
core +1 more source
Understanding turbo codes: A signal processing study
Journal of Information and IntelligenceIn this paper, we study turbo codes from the digital signal processing point of view by defining turbo codes over the complex field. It is known that iterative decoding and interleaving between concatenated parallel codes are two key elements that make ...
Xiang-Gen Xia
doaj +1 more source
Applied Sciences, 2023 In this article we present an iterative system of equalization and decoding to manage the intersymbol interference over an additive white Gaussian noise (AWGN) channel.
Adriana-Maria Cuc +3 more
doaj +1 more source
ITERATIVE DECODING OF GEOMETRIC PRODUCT CODES
Electrica, 2005 We present iterative decoding process of Geometric Product codes that is a newly proposed linear block code construction technique. We also report the bit error performances for one of the constructed code of the technique utilising our iterative ...
Gokmen ALTAY, Osman N. UCAN
doaj +2 more sources
Harmony search aided iterative channel estimation, multiuser detection and channel decoding for DS-CDMA [PDF]
, 2010 A novel Multiuser Detection (MUD) scheme is proposed for DS-CDMA systems employing the so-called Harmony Search (HS) algorithm, which is a novel meta-heuristic optimisation method.
Rong Zhang +3 more
core +1 more source
Hadamard–Viterbi Joint Soft Decoding for MFSK Underwater Acoustic Communications
Remote Sensing, 2022 Multiple Frequency-Shift Keying (MFSK) has been used widely for underwater acoustic communications due to its low complexity and channel robustness.
Fei-Yun Wu +3 more
doaj +1 more source
Soft-Bit Assisted Iterative AMR-WB Source-Decoding and Turbo-Detection of Channel-Coded Differential Space-Time Spreading Using Sphere Packing Modulation [PDF]
, 2007 Jointly optimised iterative source- and channel-decoding is used for enhancing the error resilience of the Adaptive Multi Rate WideBand (AMR-WB) speech codec.
Alamri, O. +8 more
core +1 more source