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 Performance Regimes of Uncoded Linear Communications over ...
Joint source-channel coding (JSCC) has recently ... systems that transmit media content over AWGN channels. In [5], wireless image transmission is made more robust using an analog transmitter. In [6], a nonlinear analog image encoder ... a given channel SNR. Meanwhile, the rate-distortion function of the source, R(D) ......
Rate-distortion performance for joint source and channel ...
Rate-distortion performance for joint source and channel coding of images. In Anon (Ed.), IEEE International Conference on Image Processing (Vol. 2, pp. 77-80). IEEE.
Study on Performance of Joint Source-Channel Coding For ...
without joint source and Code 3 is joint source without channel coding. The parameters of the simulations are given that show in Table 1. Figure 3 shows the BER curves and Figure 4 shows the PSNR of the received image at the receiver side of polar code. Figure 5 shows the original and received images. Table 1. Parameters of block length. Code ......
Joint Design of Fixed-Rate Source Codes and ...
Channel-optimized source coding is another approach to joint source and channel coding. In this scenario, the source code maps the set of source symbols (scalars or vectors from the source alphabet) to binary strings for transmission over the channel. In fixed-rate source coding, the effect of a channel...
Robust Image-Adaptive Data Hiding: Modeling, Source Coding ...
better performance may be obtained using joint source-channel hiding. We illustrate this via the example of image-in-image hiding. Since the attack level is seldom known a priori, our design goal is to provide graceful improvement in the quality of the recov-ered hidden image as the attack becomes milder. While joint source-channel coding for...
Operational rate-distortion performance for joint source ...
T1 - Operational rate-distortion performance for joint source and channel coding of images. AU - Ruf, Michael J. AU - Modestino, James W. PY - 1999/12/1. Y1 - 1999/12/1. N2 - This paper describes a methodology for evaluating the operational rate-distortion behavior of combined source and channel coding schemes with particular application to images....
Joint Source-Channel Coding of GGD Sources with Allpass ...
Keywords: J oint source-channel coding; source reshaping; bit allocation. 1. INTRODUCTION In an end-to-end communication system designed for image or video over noisy channels, the encoder usually consists of a source coder and a channel coder. The source coder, typically including transform, quantization and entropy coding, is to...
Rate–distortion theory - Wikipedia
Rate–distortion theory is a major branch of information theory which provides the theoretical foundations for lossy data compression; it addresses the problem of determining the minimal number of bits per symbol, as measured by the rate R, that should be communicated over a channel, so that the source (input signal) can be approximately reconstructed at the receiver (output signal) without ......
Optimization for image transmission over varying channel ...
Therefore, an important issue in image transmission is to design a protection strategy for the source data, i.e., allocating channel code rates to different data packets, based on the channel condition and the rate-distortion feature of the source, in order to optimize the overall recovery quality of image in the noise channel....
1 Iterative Decoding of JPEG Coded Images with Channel Coding
and infinite channel code block length. For practical systems, a joint source-channel coding (JSCC) design may reduce distor-tion, as well as complexity and delay. In JSCC design, the rate-distortion (R-D) method [2] is an analytic approach towards optimal bit rate allocation between source and channel encoders. Several JSCC approaches have...
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