Results 81 to 90 of about 6,409,844 (151)

Iterative channel equalization, channel decoding and source decoding

open access: yes, 2005
The performance of soft source decoding is evaluated over dispersive AWGN channels. By employing source codes having error-correcting capabilities, such as Reversible Variable-Length Codes (RVLCs) and Variable-Length Error-Correcting (VLEC) codes, the ...
Wang, J., Yang, L-L., Hanzo, L.
core   +1 more source

Cross-Layer QoS Control for Video Communications over Wireless Ad Hoc Networks

open access: yesEURASIP Journal on Wireless Communications and Networking, 2005
Assuming a wireless ad hoc network consisting of homogeneous video users with each of them also serving as a possible relay node for other users, we propose a cross-layer rate-control scheme based on an analytical study of how the effective video ...
Pei Yong   +4 more
doaj  

Stacked Intelligent Metasurfaces-Based Joint Source-Channel Coding for Image Transmissions

open access: yesIEEE Open Journal of the Communications Society
This article proposes a joint source–channel coding (JSCC) framework based on a stacked intelligent metasurface (SIM)-enabled electromagnetic neural network (EMNN) with residual connections for image reconstruction over wireless channels.
Inhyeok Choi, Shun Kojima
doaj   +1 more source

Iteratively Decoded Irregular Variable Length Coding and Trellis Coded Modulation

open access: yes, 2007
In this paper we propose a novel Irregular Variable Length Coding (IrVLC) scheme for near-capacity joint source and channel coding. We employ a number of Variable Length Coding (VLC) component codebooks having different coding rates for encoding ...
L-L. Yang   +9 more
core   +1 more source

Diffusion-Aided Joint Source Channel Coding for High Realism Wireless Image Transmission

open access: yesIEEE Transactions on Machine Learning in Communications and Networking
Deep learning-based joint source-channel coding (deep JSCC) has been demonstrated to be an effective approach for wireless image transmission. However, many current approaches utilize an autoencoder framework to optimize conventional metrics such as Mean
Mingyu Yang   +3 more
doaj   +1 more source

Extending Coverage of High Definition TV Services over ADSL2 with Optimized Reception Quality using H.264/AVC Transrating

open access: yesJournal of Communications Software and Systems, 2012
In this paper, we present a new Joint Source-Channel Coding (JSCC) architecture to extend the coverage of H.264/AVC High Definition (HD) video delivery over Digital Subscriber Line (DSL).
Anne-Sophie Bacquet-Descamps   +4 more
doaj  

Deep Joint Source-Channel Coding of Images with Feedback

open access: yes, 2020
We consider wireless transmission of images in the presence of channel output feedback, by introducing an autoencoder-based deep joint source-channel coding (JSCC) scheme.
David Burth Kurka   +3 more
core   +1 more source

Learning to Compress Over Arbitrary Channels: Information Bottleneck-Based Distributed Joint Source-Channel Coding via Deep MARL

open access: yesIEEE Open Journal of the Communications Society
In this article, we introduce a Reinforcement Learning (RL)–driven framework for Information Bottleneck (IB)–based distributed Joint Source–Channel Coding (JSCC) that operates reliably when the forward channels are unknown, non ...
Shayan Hassanpour   +2 more
doaj   +1 more source

Wireless semantic image transmission system based on deep flexible coding strategy and performance prediction

open access: yesTongxin xuebao
To improve adaptivity and coding flexibility for diverse image content under complex and dynamic wireless channel conditions, a deeply flexible joint source-channel coding (DF-JSCC) scheme and a transmission performance prediction network (PreNet) for ...
YANG Shuhan, SHEN Bin, HUANG Xiaoge
doaj  

A Multi-Hop Semantic Communication System Enhanced by Semantic Importance

open access: yesIEEE Access
Semantic communication is envisioned as a promising solution for tackling the data transmission challenges in future wireless communication systems. In this paper, we propose a novel semantic importance-enhanced multi-hop semantic communication (SIMSC ...
Xin Huang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy