项目名称: 面向网络编码的编码理论
项目编号: No.61471215
项目类型: 面上项目
立项/批准年度: 2015
项目学科: 无线电电子学、电信技术
项目作者: 杨升浩
作者单位: 香港中文大学(深圳)
项目金额: 83万元
中文摘要: 线性网络编码的优越性能促使关于其应用方案的研究快速发展,但现有的方案仍然在一些性能指标上无法满足应用的需要,例如计算和存储的复杂度高,通用性差等。本项目使用网络信息论和编码理论相结合的方法研究线性网络编码方案。在网络节点的存储空间有限制的情况下,使用网络信息论的方法来建模和分析使用线性网络编码的网络,并用容量分析得到的启发进行编码方案的研究。除了发展并完善现有的BATS码和Sumas码,本项目还研究在具有多个信源节点的网络中的具有低复杂度的网络编码方案。针对现有方案通用性差的问题,研究具有通用性的低复杂度的编码理论与编解码设计。研究成果将推动网络编码理论的发展,并为网络编码的应用提供新的技术。
中文关键词: 网络编码;线性网络编码;随机网络编码
英文摘要: The advantages of random linear network coding have attracted a lot of research interests in developing random linear network coding based solutions for various communication networks. However, most existing solutions cannot meet all the requirements due to high computation and storage complexity or the lack of universality. By combining network information theory and coding theory, this project studies coding for networks employing linear network coding.Under the constraint that the intermediate network nodes have fixed storage size, networks employing linear network coding will be modelled by linear operator channels and the capacity of such channels will be analyzed. The capacity analysis will further gudie the design of coding. In addition to extend and complete the exisitng theory of BATS codes and Sumas codes, this project will also study the low complexity solutions for networks with multiple source nodes. Theory of universal codes for LOCs, including the trade-off between universality and complexity/coding rate, will be studied, and low complexity universal codes will be designed. The research of the project will push forward the theory of coding for networks employing linear network coding and provide new network coding solutions for various communcation networks.
英文关键词: Network Coding;Linear Network Coding;Random Linear Network Coding