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Joint source/channel iterative arithmetic decoding with ...
The objective, in this section, is to improve the performance of an image transmission system using JPEG 2000 standard for compression and a Convolutional Code as a channel code. The considered coding scheme uses the JPEG 2000 encoder which compresses the source image at D s bits per pixel (bpp)....
 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...
90 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 56, NO. 1 ...
KWASINSKI and LIU: TOWARD A UNIFIED FRAMEWORK FOR MODELING AND ANALYSIS OF DIVERSITY IN JOINT SOURCE-CHANNEL CODING 91 Source Encoder (rate x) Channel Encoder (rate r) AWGN Channel SNR Source Decoder Channel Decoder Source Recovered Fig. 1. Block diagram of the system under study transmission in mobile channels, [23] for image transmission...
ITERATIVE SOURCE-CHANNEL DECODING FOR ROBUST IMAGE ...
after source-encoding and the explicit redundancies from chan-nel codes are used for protecting the data. Furthermore, in the proposed experimental image transmission system the source and channel encoding rates are jointly allocated in a rate-distortion sense. For the source correlation a two-dimensional model [5] is used, and at the decoder ......
Iterative Source-Channel Decoding for Error-Resilient ...
3 Joint Allocation of Source and Channel Coding Rates When considering the transmission model in Fig. 1 for every subband in a subband image compression scheme, we have the additional problem of choosing the individual bit rates for the subbands and the channel coding rates for a given rate budget µÊ...
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