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Designing Tornado Codes as Hyper Codes for Improved Error Correcting Performance

Kristian Nybom, Jerker Björkqvist, Designing Tornado Codes as Hyper Codes for Improved Error Correcting Performance. In: Proceedings of the Advanced International Conference on Telecommunications (AICT'06), IEEE Computer Society Press, 2006.

Abstract:

Digital services are increasingly being delivered to user terminals over
wireless multicast networks. When the target service requires
uncorrupted data delivery, there is an increasing need for developing
techniques for reliable content delivery. In multicast networks, the
typical way of providing reliable content delivery is to apply forward
error correcting techniques (FEC). In this paper, we introduce a
modification to the Tornado code, where we combine the structures of
Tornado codes and Hyper codes. Standard Tornado codes have the drawback
that they are dependent on the error distribution on the data path. By
combining the Tornado code with a Hyper code, we decrease the
probability of the Tornado decoder failing due to inopportune error
distribution in the source data.

We demonstrate, based on a simulated transmission channel, that the
error correcting performance is improved, at the cost of slightly longer
decoding times, by using a combination of Hyper codes and Tornado codes,
compared to the standard Tornado codes.

Files:

Abstract in PDF-format

BibTeX entry:

@INPROCEEDINGS{inpNyBj06a,
  title = {Designing Tornado Codes as Hyper Codes for Improved Error Correcting Performance},
  booktitle = {Proceedings of the Advanced International Conference on Telecommunications (AICT'06)},
  author = {Nybom, Kristian and Björkqvist, Jerker},
  publisher = {IEEE Computer Society Press},
  year = {2006},
}

Belongs to TUCS Research Unit(s): Embedded Systems Laboratory (ESLAB)

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