电子学报2009，Vol.37Issue(10)：2119-2124,2138,7.
网络拓扑未知环境下确定性网络编码数据传输
A Deterministic Data Transmission Approach with Network Coding Under Unknown Network Topology
摘要
Abstract
Aiming at the single-source multicast connection of unknown network topology,in which there is at least a feedback path from each sink node to source node, this paper proposes a network coding construction of deterministic network coding data transmission to implement multicast connection. The approach divides multicast connection process into trial multicast phase and data transmission phase.In trial multicast phase,the source node,as central control node,multicasts repeatedly trial packets into network by random network coding strategy,and each sink node transmits feedback information to the source node. Therefore it is possible to measure the multicast capacity of single-source multicast network and determine the coding vector of each channel respectively. In data transmission phase,by virtue of the parameters obtained in the former phase,data can be transmitted by deterministic network coding transmission strategy. Theoretical analysis shows that the proposed approach is feasible and simulation results show that it is also effective.关键词
线性网络编码/单源组播/未知网络拓扑/确定性网络编码数据传输Key words
linear network coding/ single-source multicast/ unknown network topology/ deterministic data transmission with network coding分类
信息技术与安全科学引用本文复制引用
蒲保兴,杨路明,王伟平..网络拓扑未知环境下确定性网络编码数据传输[J].电子学报,2009,37(10):2119-2124,2138,7.基金项目
国家973重点基础研究发展规划专项(No.2008CB317107) （No.2008CB317107）
国家自然科学基金(No.60873265) （No.60873265）
湖南省教育厅重点科研项目(No.06A065) （No.06A065）
