Results 31 to 40 of about 577,620 (178)

A Lossless Multichannel Bio-Signal Compression Based on Low-Complexity Joint Coding Scheme for Portable Medical Devices

open access: yesSensors, 2014
Research on real-time health systems have received great attention during recent years and the needs of high-quality personal multichannel medical signal compression for personal medical product applications are increasing. The international MPEG-4 audio
Dong-Sun Kim, Jin-San Kwon
doaj   +1 more source

MASS: Microphone Array Speech Simulator in Room Acoustic Environment for Multi-Channel Speech Coding and Enhancement

open access: yesApplied Sciences, 2020
Multi-channel speech coding and enhancement is an indispensable technology in speech communication. In order to verify the effectiveness of multi-channel speech coding and enhancement methods in the research and development, a microphone array speech ...
Rui Cheng, Changchun Bao, Zihao Cui
doaj   +1 more source

Channel coding for satellite mobile channels [PDF]

open access: yesInternational Journal of Satellite Communications, 1989
AbstractThe deployment of channel coding and interleaving to enhance the bit‐error performance of a satellite mobile radio channel is addressed for speech and data transmissions. Different convolutional codes (CC) using Viterbi decoding with soft decision are examined with inter‐block interleaving.
Wong, K H H, Hanzo, L, Steele, R
openaire   +2 more sources

Lossy Joint Source-Channel Coding Using Raptor Codes

open access: yesInternational Journal of Digital Multimedia Broadcasting, 2008
The straightforward application of Shannon's separation principle may entail a significant suboptimality in practical systems with limited coding delay and complexity.
O. Y. Bursalioglu   +3 more
doaj   +1 more source

Expansion coding: Achieving the capacity of an AEN channel

open access: yes, 2012
A general method of coding over expansions is proposed, which allows one to reduce the highly non-trivial problem of coding over continuous channels to a much simpler discrete ones.
Appaiah, Kumar   +3 more
core   +1 more source

Polar Coding for Fading Channels

open access: yes, 2013
A polar coding scheme for fading channels is proposed in this paper. More specifically, the focus is Gaussian fading channel with a BPSK modulation technique, where the equivalent channel could be modeled as a binary symmetric channel with varying cross ...
Koyluoglu, O. Ozan   +2 more
core   +1 more source

Iterative joint design of source codes and multiresolution channel codes [PDF]

open access: yes, 1997
We propose an iterative design algorithm for jointly optimizing source and channel codes. The joint design combines channel-optimized vector quantization (COVQ) for the source code with rate-compatible punctured convolutional (RCPC) coding for the ...
Effros, Michelle, Goldsmith, Andrea
core   +1 more source

The Three-User Finite-Field Multi-Way Relay Channel with Correlated Sources

open access: yes, 2013
This paper studies the three-user finite-field multi-way relay channel, where the users exchange messages via a relay. The messages are arbitrarily correlated, and the finite-field channel is linear and is subject to additive noise of arbitrary ...
Johnson, Sarah J.   +3 more
core   +1 more source

Theoretical performance comparison between reference-based coherent BPSK and BCH coded differential BPSK [PDF]

open access: yes, 1992
Both channel sounding and channel coding are well-known techniques for improving bit error rate (BER) performance of data transmission over a narrowband mobile radio channel.
Bateman, A, Li, M, McGeehan, JP
core   +2 more sources

Simple channel coding bounds [PDF]

open access: yes2009 IEEE International Symposium on Information Theory, 2009
Presented at ISIT ...
Wang, Ligong   +2 more
openaire   +2 more sources

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