Results 11 to 20 of about 946 (135)

Rate–Distortion–Perception Optimized Neural Speech Transmission System for High-Fidelity Semantic Communications [PDF]

open access: yesSensors
We consider the problem of learned speech transmission. Existing methods have exploited joint source–channel coding (JSCC) to encode speech directly to transmitted symbols to improve the robustness over noisy channels.
Shengshi Yao, Zixuan Xiao, Kai Niu
doaj   +2 more sources

Channel-Blind Joint Source–Channel Coding for Wireless Image Transmission [PDF]

open access: yesSensors
Joint source–channel coding (JSCC) based on deep learning has shown significant advancements in image transmission tasks. However, previous channel-adaptive JSCC methods often rely on the signal-to-noise ratio (SNR) of the current channel for encoding ...
Hongjie Yuan   +3 more
doaj   +2 more sources

Controversial Variable Node Selection-Based Adaptive Belief Propagation Decoding Algorithm Using Bit Flipping Check for JSCC Systems [PDF]

open access: yesEntropy, 2022
An end-to-end joint source–channel (JSC) encoding matrix and a JSC decoding scheme using the proposed bit flipping check (BFC) algorithm and controversial variable node selection-based adaptive belief propagation (CVNS-ABP) decoding algorithm are ...
Hao Wang   +4 more
doaj   +2 more sources

HASCom: A Heterogeneous Affective-Semantic Communication Framework for Speech Transmission [PDF]

open access: yesSensors
Driven by the development of next-generation wireless networks and the widespread adoption of sensing, communication is shifting from traditional bit-level transmission to intelligent, rich interactions within our digital social system. However, existing
Zhenjia Yu   +4 more
doaj   +2 more sources

Performance Analysis of Sphere Packed Aided Differential Space-Time Spreading with Iterative Source-Channel Detection [PDF]

open access: yesSensors, 2021
The introduction of 5G with excessively high speeds and ever-advancing cellular device capabilities has increased the demand for high data rate wireless multimedia communication.
Hameed Ullah Khan   +5 more
doaj   +2 more sources

CNN and Attention-Based Joint Source Channel Coding for Semantic Communications in WSNs [PDF]

open access: yesSensors
Wireless Sensor Networks (WSNs) have emerged as an efficient solution for numerous real-time applications, attributable to their compactness, cost-effectiveness, and ease of deployment.
Xinyue Liu   +4 more
doaj   +2 more sources

Reordered Elias Gamma Error Correction Codes for the Near-Capacity Transmission of Multimedia Information

open access: yesIEEE Access, 2016
A novel joint source and channel coding (JSCC) scheme is proposed, which we refer to as the reordered Elias gamma error correction (REGEC) code. Like the recently proposed unary error correction (UEC) code and EGEC code, the proposed code facilitates the
Tao Wang   +4 more
doaj   +2 more sources

A novel image semantic communication method via dynamic decision generation network and generative adversarial network [PDF]

open access: yesScientific Reports
Effectively compressing transmitted images and reducing the distortion of reconstructed images are challenges in image semantic communication. This paper proposes a novel image semantic communication model that integrates a dynamic decision generation ...
Shugang Liu   +3 more
doaj   +2 more sources

Exponential Golomb and Rice Error Correction Codes for Generalized Near-Capacity Joint Source and Channel Coding

open access: yesIEEE Access, 2016
The recently proposed unary error correction (UEC) and Elias gamma error correction (EGEC) codes facilitate the near-capacity joint source and channel coding (JSCC) of symbol values selected from large alphabets at a low complexity.
Matthew F. Brejza   +6 more
doaj   +2 more sources

Optimal Design of Joint Protomatrix for DP-LDPC Codes-Based JSCC System Over on-Body Channel

open access: yesIEEE Access, 2021
A high-quality data transmission scheme in wireless body area networks is implemented by a joint source-channel coding (JSCC) system with $M$ -ary differential chaos shift keying modulation over an on-body channel. Current DP-LDPC code pairs, which have
Dan Song   +3 more
doaj   +1 more source

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