Trends in Network Coding

摘要

In this work the idea is to draw attention to highlights in the past decade of network coding research from the goals and perspectives point of view. In the same time, it is of importance to pave the way towards future theoretical and practical research and development in this area. In the first part, we review some network coding principles presenting in addition some deep connections between linear network coding and algebra. Also, it is pointed out that employing coding at the nodes network capacity can be increased compared with employing routing alone in a simple network topology known as butterfly network. The second part of this paper deals with network coding in peer-to-peer (P2P) networks. Here, the use of network coding is more realistic when applied in an operational on demand streaming system, operated at a large scale that accommodates millions of Internet users. Physical layer network coding and wireless medium will conclude the presentation.