Policy allocation for transmission of embedded bit streams over noisy channels with feedback
IEEE Transactions on Communications
A novel UEP algorithm based on error resilient arithmetic code
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A joint iterative decoding Scheme in wireless image transmission system
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
A comparative analysis of LDPC decoders for image transmission over AWGN channel
Proceedings of the 7th International Conference on Frontiers of Information Technology
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Rate-compatible low-density parity-check (RC-LDPC) codes are used to provide unequal error protection for the robust and efficient transmission of JPEG2000 compressed images over noisy channels. The total bit budget is partitioned between the source and the channel coding by using a Viterbi algorithm (VA) applied to a search trellis, and appropriate channel code rates are assigned to the source blocks. The performance of the proposed scheme is evaluated on binary symmetric channels (BSCs). Experimental results indicate that the proposed scheme compares favorably with other combined source/channel coding schemes over a variety of channel conditions and transmission bit rates. In particular, the proposed scheme outperforms similar schemes based on turbo codes and irregular repeat-accumulate codes by up to about 1.1 and 1 dB in the expected peak signal-to-noise ratio (PSNR) of reconstructed images, respectively.