Results 71 to 80 of about 558,827 (173)

Sensitivity analysis of the channel estimation deviation to the MAP decoding algorithm

open access: yesTongxin xuebao, 2006
As a necessary input parameter for MAP decoding algorithm,SNR was normally obtained from the channel estimation unit.Corresponding research indicated that SNR estimation deviation degraded significantly the performance of Turbo decoding.MAP decoding ...
WAN Ke, FAN Ping-zhi
doaj   +2 more sources

An Efficient SF-ISF Approach for the Slepian-Wolf Source Coding Problem

open access: yesEURASIP Journal on Advances in Signal Processing, 2005
A simple but powerful scheme exploiting the binning concept for asymmetric lossless distributed source coding is proposed. The novelty in the proposed scheme is the introduction of a syndrome former (SF) in the source encoder and an inverse syndrome ...
Tu Zhenyu   +2 more
doaj   +1 more source

Space-Time Turbo Coded Modulation: Design and Applications

open access: yesEURASIP Journal on Advances in Signal Processing, 2002
A design method for recursive space-time trellis codes and parallel-concatenated space-time turbo coded modulation is proposed that can be applied to an arbitrary existing space-time trellis code.
Tujkovic Djordje   +2 more
doaj   +1 more source

Turbo-Coded Adaptive Modulation Versus Space-Time Trellis Codes for Transmission over Dispersive Channels

open access: yes, 2004
Decision feedback equalizer (DFE)-aided turbocoded wideband adaptive quadrature amplitude modulation (AQAM) is proposed, which is capable of combating the temporal channel quality variation of fading channels. A procedure is suggested for determining the
Liew, T.H., Wong, C.H., Hanzo, L.
core   +1 more source

Iterative Vector Tracking of Turbo- or LDPC- Coded High-level Constellations on a Nonlinear Satellite Channel

open access: yes, 2003
Interactive multimedia wideband satellite services will require the adoption of Turbo or Low-Density Parity-Check (LDPC) coded spectrally-efficient high-level modulation techniques in future satellite transmission standards.
GIUGNO L   +2 more
core  

Turbo Coding, Turbo Equalisation and Space-Time Coding

open access: yes, 2002
Against the backdrop of the emerging 3G wireless personal communications standards and broadband access network standard proposals, this volume covers a range of coding and transmission aspects for transmission over fading wireless channels.
Yeap, B.L., Liew, T.H., Hanzo, L.
core   +1 more source

On the Error Statistics of Turbo Decoding for Hybrid Concatenated Codes Design

open access: yesJournal of Communications Software and Systems, 2019
In this paper we propose a model for the generation of error patterns at the output of a turbo decoder. One of the advantages of this model is that it can be used to generate the error sequence with little effort.
Fulvio Babich, Francesca Vatta
doaj  

Turbo-Detected Unequal Protection MPEG-4 Audio Transceiver Using Convolutional Codes, Trellis Coded Modulation and Space-Time Trellis Coding

open access: yes, 2005
A jointly optimised turbo transceiver capable of providing unequal error protection is proposed for employment in an MPEG-4 aided audio transceiver. The transceiver advocated consists of Space-Time Trellis Coding (STTC), Trellis Coded Modulation (TCM ...
Ng, S.X., Othman, N.S., Hanzo, L.
core   +1 more source

Near-capacity three-stage MMSE turbo equalization using irregular convolutional codes

open access: yes, 2006
Traditional Turbo EQualization (TEQ) schemes suffer from residual bit errors due to the non-recursive nature of the channel imposing Inter-Symbol-Interference (ISI).
Ng, S.X.   +5 more
core   +1 more source

A Theoretical Framework for Soft-Information-Based Synchronization in Iterative (Turbo) Receivers

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
This contribution considers turbo synchronization, that is to say, the use of soft data information to estimate parameters like carrier phase, frequency, or timing offsets of a modulated signal within an iterative data demodulator.
Lottici Vincenzo   +6 more
doaj  

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