Image communication over noisy channels with feedback

When a feedback channel is available from the receiver to the transmitter, adaptive schemes for source-channel coding can be used for image transmission. In this paper we see that the use of embedded source codes and embedded channel codes, when combined in a hybrid ARQ protocol, can provide the des...

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Bibliographic Details
Main Authors: Chande, V., Farvardin, N., Jafarkhani, H.
Format: Conference Proceeding
Language:English
Subjects:
Automatic repeat request
Constraint optimization
Educational institutions
Feedback
Image coding
Image communication
Mobile communication
Protocols
PSNR
Transmitters
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Summary:When a feedback channel is available from the receiver to the transmitter, adaptive schemes for source-channel coding can be used for image transmission. In this paper we see that the use of embedded source codes and embedded channel codes, when combined in a hybrid ARQ protocol, can provide the desired flexibility at high efficiency, low complexity and low feedback channel usage. We propose optimized schemes for transmission over Gilbert-Elliot channels, with and without constraints on the feedback channel usage. We observe that the end-to-end quality of the received image can be improved significantly by a moderate use of feedback.
DOI:10.1109/ICIP.1999.822954