NS仿真器的一个网络编码扩展  

NS Extension for Network Coding

作　　者：李令雄[1,2] 洪江守[2] 龙冬阳[1,2] 

机构地区：[1]广东省信息安全重点实验室,广州510006 [2]中山大学计算机系,广州510275

出　　处：《计算机科学》2009年第7期71-73,144,共4页Computer Science

基　　金：国家自然科学基金(60273062;60573039);广东省自然科学基金(04205407;5003350)资助

摘　　要：网络编码自提出以来,引起了广泛关注,在常见仿真器上对其进行仿真研究十分必要。现有的仿真器缺乏对网络编码的模拟能力。实现网络编码的相应扩展是对网络编码性能进行仿真研究的基础。选取NS2仿真器作为平台研究分析了NS2现有架构与网络编码的不兼容之处。在此基础上,首次提出网络编码扩展的实现方案,主要包括架构调整和编码模块实现两部分。最后在经典网络拓扑上进行了模拟验证。Network coding has received extensive research attention, but the Simulation research on popular network simulators is few. Most of current network simulators were designed to simulate traditional networks, where nodes can only copy and forward packets only. While in the paradigm of network coding, nodes can perform coding operations on packets. The extension for network coding is fundamental for further simulation study. We analyzed the structure of NS firstly, and identified the parts that should be modified to suit for network coding. Then we proposed and implemented the extension. At last, simulation experiment on basic network was performed to verify the availability of the extension.

关 键 词：网络仿真器 网络编码 线性编码 NS 

分 类 号：TP337[自动化与计算机技术—计算机系统结构]