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A joint source and channel coding algorithm for error-resilient SPIHT-coded video bitstreams

JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION 2006年第6期17卷 1164-1177页

作者： Chih-Ming Fu Wen-Liang Hwang Chung-Lin Huang Natl Tsing Hua Univ Dept Elect Engn Hsinchu Taiwan Acad Sinica Inst Informat Sci Taipei Taiwan

We propose an analytical rate-distortion optimized joint source and channel coding algorithm for error-resilient scalable encoded video for lossy transmission. A video is encoded into multiple independent substreams to avoid error propagation and is assigned forward error correction (FEC) codes and source bits using Lagrange optimization. Our method separates video coding and packetization into different tiers which can be easily incorporated into any coding structure that generates a set of independent compressed bit-streams. To demonstrate the performance, we use the 2-state Markov model to describe the burst loss channel and Reed-Solomon codes as forward error correction codes. Simulation results show that the proposed channel incorporated rate-distortion optimization approach have better performance. (C) 2006 Elsevier Inc. All rights reserved.

关键词： joint source channel coding video transmission

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Non-parametric analog joint source channel coding for amplify-and-forward two-hop networks

Non-parametric analog Joint Source Channel Coding for amplif...

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IEEE International Conference on Acoustics, Speech and Signal Processing

作者： E. Hodgson G. Brante R. Souza J. Garcia-Frias UTFPR Curitiba-PR (Brazil) University of Delaware Newark (USA)

ISBN: (纸本)9781509041183

We investigate the use of discrete-time analog joint source channel coding (JSCC) in an amplify-and-forward two-hop wireless network subject to Rayleigh fading channels. The discrete-time analog source is compressed using either 2:1, 3:1 or 4:1 low delay dimension-compression parametric and non-parametric analog JSCC. Our results show that both, non-parametric and parametric, analog schemes outperform an ideal fully digital system based on scalar quantization, while the performance obtained with non parametric mappings is superior to that achieved with parametric systems.

关键词： joint source channel coding Analog Mappings Bandwidth Compression scalar quantization channel coding Analog Analog Parametric Rayleigh fading joints joints discrete-time

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joint source/channel coding of Statistically Multiplexed Real-Time Services on Packet Networks

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IEEE-ACM TRANSACTIONS ON NETWORKING 1993年第1期1卷 71-80页

作者： Garrett, Mark W. Vetterli, Martin Bell Commun Res Commun Sci Res Div Morristown NJ 07960 USA Columbia Univ Dept Elect Engn New York NY 10027 USA Columbia Univ Ctr Telecommun Res New York NY 10027 USA Columbia Univ Image & Adv Televis Lab New York NY 10027 USA

We investigate the interaction of congestion control with the partitioning of source information into components of varying importance for variable bit-rate packet voice and packet video. High-priority transport for the more important signal components results in substantially increased objective service quality. Using a Markov chain voice source model with simple PCM speech encoding and a priority queue, simulation results show a signal-to-noise ratio improvement of 45 dB with two priorities over an unprioritized system. Performance is sensitive to the fraction of traffic placed in each priority, and the optimal partition depends on network loss conditions. When this partition is optimized dynamically, quality degrades gracefully over a wide range of load values. Results with DCT encoded speech and video samples show similar behavior. Variations are investigated such as further partition of low-priority information into multiple priorities. A simulation with delay added to represent other network nodes shows general insensitivity to delay of network feedback information. A comparison is made between dropping packets on buffer overflow and timeout based on service requirements.

关键词： Discrete Cosine Transforms Markov Processes Multiplexing Packet Switching Queueing Theory Speech coding Visual Communication Voice Communication joint source channel coding Statistically Multiplexed Real Time Services Packet Networks Congestion Control Variable Bit Rate Packet Voice Packet Video Markov Chain Voice source Model PCM Speech Encoding Priority Queue Signal To Noise Ratio DCT Encoded Speech channel coding Speech Phase Change Materials Signal To Noise Ratio Performance Loss Telecommunication Traffic Traffic Control Degradation Discrete Cosine Transforms Added Delay

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A Real-Time joint source-channel coding Based on a Simplified Modeling of the Residual Video Packet Loss

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IEICE TRANSACTIONS ON COMMUNICATIONS 2010年第6期E93B卷 1583-1593页

作者： Jeong, Yo-Won Kwon, Jae Cheol Kim, Jae-kyoon Park, Kyu Ho Korea Adv Inst Sci & Technol Dept EECS Taejon South Korea

We propose a simplified model of real-time joint source-channel coding. which can be used to adaptively determine the quality-optimal code rate of forward error correction (FEC) coding. The objective is to obtain the maximum video quality in the receiver, while taking time-varying packet loss into consideration. To this end, we propose a simplified model of the threshold set of the residual video packet loss rate (RVPLR). The RVPLR is the rate of residual loss of video packets after channel decoding. The threshold set is defined as a set of discrete RVPLRs in which the FEC code rate must be changed in order to maintain minimum distortion during increases or decreases of channel packet loss. Because the closed form of the proposed model is very simple and has one scene-dependent model parameter. a video sender can be easily implemented with the model. To train the scene-dependent model parameters in real-time, we propose a test-run method. This method accelerates the test-run while remaining sufficiently accurate for training the scene-dependent model parameters. By using the proposed model and test-run, the video sender can always find the optimal code rate on the fly whenever there is a change in the packet loss status in the channel. An experiment shows that the proposed model and test-run can efficiently determine the near-optimal code rate in joint source-channel coding.

关键词： joint source channel coding real-time code rate decision test-run parameter training

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A joint source channel coding Applied to Video for Sequences of Images

A Joint Source Channel Coding Applied to Video for Sequences...

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2009图像分析与信号处理国际会议(2009 International Conference on Image Analysis and Signal Processing)

作者： Wang Shan School of Information Engineering Departments ECJTU Nanchang 330013China

ISBN: (纸本)9781424439874

This paper presents a joint source channel coding designed for video (sequences of images) transmission application. The aim is to improve the visual quality of the reconstructed video, even when transmission errors occur, and to keep the processing as simple as possible. The BER excepted is higher than 10-4. This coding is based on an association of a wavelet transform (WT) and a vector quantization (VQ). The whole transmission chain is jointly exploited in order to make it well-adapted to the complex and low data rate channel.

关键词： joint source channel coding vector quantization wavelet transform image transmission

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Zero-Delay joint source-channel coding with a 1-Bit ADC Front End and Receiver Side Information

Zero-Delay Joint Source-Channel Coding with a 1-Bit ADC Fron...

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IEEE Information Theory Workshop (ITW)

作者： Varasteh, Morteza Rassouli, Borzoo Simeone, Osvaldo Gunduz, Deniz Imperial Coll London Dept Elect & Elect Engn London England New Jersey Inst Technol ECE Dept CWCSPR Newark NJ 07102 USA

ISBN: (纸本)9781509010905

Zero-delay transmission of a Gaussian source over an additive white Gaussian noise (AWGN) channel with a 1-bit analog-to-digital converter (ADC) front end is investigated in the presence of correlated side information at the receiver. The design of the optimal encoder is considered for the mean squared error (MSE) distortion criterion under an average power constraint on the channel input. A necessary condition for the optimality of the encoder is derived. A numerically optimized encoder (NOE) is then obtained that aims that enforcing the necessary condition. It is observed that, due to the availability of receiver side information, the optimal encoder mapping is periodic, with its period depending on the correlation coefficient between the source and the side information. We then propose two parameterized encoder mappings, referred to as periodic linear transmission (PLT) and periodic BPSK transmission (PBT), which trade-off optimality for reduced complexity as compared to the NOE solution. We observe via numerical results that PBT performs close to the NOE in the high signal-to-noise ratio (SNR) regime, while PLT approaches the NOE performance in the low SNR regime.

关键词： joint source channel coding zero-delay transmission 1-bit ADC correlated side information

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joint source channel Network coding Using QC LDPC codes 3

Joint Source Channel Network Coding Using QC LDPC codes

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3rd International Conference on Communications and Signal Processing (ICCSP)

作者： Jesy, P. Deepthi, P. P. Natl Inst Technol Calicut 673601 Kerala India

ISBN: (纸本)9781479933587

Motivated to develop a scheme that compresses, gives high throughput and adds robustness against channel noise, a new joint source channel network coding (JSCNC) using Quasi Cyclic Low Density Parity Check (QCLDPC) code is proposed for a sensor network with two source nodes communicating correlated information to multiple destination nodes. The source coding is performed by transmitting only half of the information bits of QCLDPC code and transmitting the parity bits as such, since the parity bits are usually uncorrelated compared to the corresponding information bits. The correlations in sensor network data are used effectively at the relay node to reconstruct the original information bits transmitted by the source nodes. Relay scheme used in our proposed work is a decode and forward relaying in which masking of information bits are done before network coding at the relay. This helps in low-error decoding at the destination.

关键词： Distributed source coding joint network channel coding joint source channel coding network coding wireless sensor networks

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Real-time Implementation and Evaluation of SDR-based Deep joint source-channel coding 96

Real-time Implementation and Evaluation of SDR-based Deep Jo...

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IEEE 96th Vehicular Technology Conference (VTC-Fall)

作者： Liu, Maolin Chen, Wei Xu, Jialong Ai, Bo Beijing Jiaotong Univ State Key Lab Rail Traff Control & Safety Beijing Peoples R China Frontiers Sci Ctr Smart High Speed Railway Syst Beijing Peoples R China Key Lab Railway Ind Broadband Mobile Informat Com Beijing Peoples R China Beijing Engn Res Ctr High Speed Railway Broadband Beijing Peoples R China Zhengzhou Univ Sch Informat Engn Zhengzhou Peoples R China

ISBN: (纸本)9781665454681

Benefiting from the advantage of joint source-channel coding in the finite block length regime and the advancement of AI technologies, deep joint source channel coding (DJSCC) has been extensively investigated for various sources (e.g., text source, image source, and video source) and achieved remarkable performance in limited bandwidth and low signal-to-noise ratios (SNRs). However, the performance gain brought by DJSCC methods is all observed via simulations in literature, where synchronization, channel estimation and the power amplifier are assumed to be perfect. In this paper, we design a software-defined radio (SDR) based platform to validate the DJSCC method for image transmission in real wireless scenarios.

关键词： joint source channel coding software-defined radio performance evaluation

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MOSFET-based Ultra-low-power Realization of Analog joint source-channel coding for IoTs 16

MOSFET-based Ultra-low-power Realization of Analog Joint Sou...

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IEEE International Conference on Sensing, Communication, and Networking (IEEE SECON)

作者： Sadhu, Vidyasagar Rahmati, Mehdi Pompili, Dario Rutgers Univ New Brunswick Dept Elect & Comp Engn New Brunswick NJ 08901 USA

ISBN: (纸本)9781728112077

Certain sensing applications such as Internet of Things (IoTs), where the sensing phenomenon may change rapidly in both time and space, require sensors that consume ultra-low power devices (so as to be able to collect data continuously and not lose temporal and spatial resolution) and have low costs (for high density deployment). A novel encoding based on Metal Oxide Semiconductor Field Effect Transistors (MOS-FETs) is proposed to realize Analog joint source channel coding (AJSCC), a low-complexity technique to compress two (or more) signals into one with controlled distortion. The approach is verified via Spice simulations and breadboard implementation.

关键词： Internet of things joint source channel coding field effect transistors wireless sensor networks ultra low power

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joint source-channel coding with One-Bit ADC Front End

Joint Source-Channel Coding with One-Bit ADC Front End

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IEEE International Symposium on Information Theory (ISIT)

作者： Varasteh, Morteza Simeone, Osvaldo Gunduz, Deniz Imperial Coll London Dept Elect & Elect Engn London England New Jersey Inst Technol ECE Dept CWCSPR Newark NJ 07102 USA

ISBN: (纸本)9781509018062

This paper considers the zero-delay transmission of a Gaussian source over an additive white Gaussian noise (AWGN) channel with a one-bit analog-to-digital converter (ADC) front end. The optimization of the encoder and decoder is tackled under both the mean squared error (MSE) distortion and the outage distortion criteria with an average power constraint. For MSE distortion, the optimal transceiver is identified over the space of symmetric encoders. This result demonstrates that the linear encoder, which is optimal with a full-precision front end, approaches optimality only in the low signal-to-noise ratio (SNR) regime;while, digital transmission is optimal in the high SNR regime. For the outage distortion criterion, the structure of the optimal encoder and decoder are obtained. In particular, it is shown that the encoder mapping is piecewise constant and can take only two opposite values when it is non-zero.

关键词： joint source channel coding zero-delay transmission average distortion outage distortion one-bit ADC

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