论文标题
用于评估无线通道的喷泉代码的测试床
A Testbed for Assessment of Fountain Codes for Wireless Channels
论文作者
论文摘要
Luby Transform（LT）代码是一类喷泉代码，事实证明，在擦除通道上的性能非常有效。这些代码是无重量的，因为可以生成无限的编码符号流。此外，每个编码的符号都是信息添加剂，并且可以在解码过程中做出贡献。正在考虑的喷泉代码的重要应用是通过移动无线通道的内容传递。喷泉代码具有低计算复杂性，并且快速编码和解码算法，这使得它们在实时应用程序中有吸引力，例如通过无线通道流式传输视频。众所周知，L T代码在二元擦除频道上的容量接近能力，并且可以预见，它们在其他渠道（例如移动通信渠道和卫星链接）上的性能良好。本文考虑了测试床的开发，以研究喷泉代码在此类渠道上的性能。 LT代码在二元对称通道和加性白色高斯噪声（WGN）通道上的性能作为测试床用法的示例。
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. L T 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 (A WGN) Channel is presented as examples of the testbed usage.
