Results 91 to 100 of about 3,412 (199)

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  

Numerical and analytical research of the impact of decoherence on quantum circuits

open access: yes, 2014
Three different levels of noisy quantum schemes modeling are considered: vectors, density matrices and Choi-Jamiolkowski related states. The implementations for personal computers and supercomputers are described, and the corresponding results are shown.
Bantysh, B. I.   +7 more
core   +1 more source

Lightweight and Adaptive Deep Coding for Wireless Image Transmission in Semantic Communication

open access: yesIEEE Access
Currently, deep learning-based joint source channel coding (JSCC) methods have achieved significant progress in enabling semantic communication. However, existing methods of this type often fall short of meeting the new demands in terms of model ...
Youming Sun   +5 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  

Turbo-detected unequal protection audio and speech transceivers using serially concatenated convolutional codes, trellis coded modulation and space-time trellis coding

open access: yes, 2005
The MPEG-4 TwinVQ audio codec and the AMR-WB speech codec are investigated in the context of a jointly optimised turbo transceiver capable of providing unequal error protection.
Hanzo, L., Ng, S.X., Othman, N.S.
core  

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

Comparison of JSCC and IFCC methods in measurement of alkaline phosphatase activity

open access: yesTenri Medical Bulletin, 2022
Saki Tamura   +7 more
openaire   +1 more source

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

Joint Source-Channel Coding for Multi-Channel Vibrotactile Sensors

open access: yesIEEE Access
Wireless transmission of vibrotactile information holds great promise for immersive Extended Reality (XR) applications, particularly in enabling fine-grained remote manipulation through multi-channel vibrotactile signals.
Tom Ogura   +4 more
doaj   +1 more source

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