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Open Access research with a European policy impact...

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EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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A testbed for assessment of fountain codes for wireless channels

Usman, M. and Dunlop, J. (2005) A testbed for assessment of fountain codes for wireless channels. In: 11th European Wireless Conference 2005, 2005-04-10 - 2005-04-13.

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Abstract

Luby Transform (LT) codes are a class of fountain codes that have proved to perform very efficiently over the erasure channel. These codes are rateless in the sense that an infinite stream of encoded symbols can be generated on the fly. Furthermore, every encoded symbol is information additive and can contribute in the decoding process. An important application of fountain codes which is being considered is the delivery of content over mobile wireless channels. Fountain codes have low computational complexity and fast encoding and decoding algorithms which makes them attractive for real time applications such as streaming video over wireless channels. LT codes are known to perform close to capacity on the binary erasure channel and it is envisaged that they would have good performance on other channels such as mobile communication channels and satellite links. This paper considers the development of a test-bed to study the performance of fountain codes over such channels. The performance of LT codes on the binary symmetric channel and Additive White Gaussian Noise (AWGN) Channel is presented as examples of the testbed usage.