Forward-error correction with decision feedback

Balancing forward and feedback error correction for erasure channels with unreliable feedback

The traditional information theoretic approach to studying feedback is to consider ideal instantaneous high-rate feedback of the channel outputs to the encoder. This was acceptable in classical work because the results were negative: Shannon pointed out that even perfect feedback often does not improve capacity and in the context of symmetric DMCs, Dobrushin showed that it does not improve the ...

Soft-decision Forward Error Correction for Coherent Super-channels

Improving 802.11 Range with Forward Error Correction

The ISO/IEC 8802-11:1999(E) specification uses a 32-bit CRC for error detection and whole-packet retransmissions for recovery. In longdistance or high-interference links where the probability of a bit error is high, this strategy results in excessive losses, because any erroneous bit causes an entire packet to be discarded. By ignoring the CRC and adding redundancy to 802.11 payloads in softwar...

Superdense Coding Interleaved with Forward Error Correction

Superdense coding promises increased classical capacity and communication security but this advantage may be undermined by noise in the quantum channel. We present a numerical study of how forward error correction (FEC) applied to the encoded classical message can be used to mitigate against quantum channel noise. By studying the bit error rate under different FEC codes, we identify the unique ...

Distributed Video Streaming with Forward Error Correction

With the explosive growth of video applications over the Internet, many approaches have been proposed to stream video effectively over packet switched, best-effort networks. Many use techniques from source and channel coding, or implement transport protocols, or modify system architectures in order to deal with delay, loss, and time-varying nature of the Internet. In our previous work , we prop...