无线自组织网络的网络编码技术

网络编码作为一种新的技术在宽带无线自组织网络中有很好的应用,通过网络编码,中间节点可以将接收信息进行编码并发送出去,提高了网络吞吐量和健壮性。为不对现有网络的软硬件设备和相应的协议做很大的修改,可以选择在高层实现网络编码。无线传感器网络、无线格状网（Mesh）等无线自组织网络都可以使用网络编码技术显著提高多跳链路的传输性能。目前网络编码的研究热点集中在网络编码节点选取方案、网络编码算法的设计、网络编码复杂度分析、网络编码的性能分析、网络编码与系统安全性分析、网络编码在无线分布式网络中的应用等方面。

Network Coding Technology in the Wireless Self-organized Network

The network coding, as a novel technology, will have a good application in the broadband wireless self-organized network. The relay node will decode and forward the relaying message via the network coding technology, which will improve the network throughput and enhance the robustness. In order to decrease the modification on the software, hardware and corresponding protocols in the current network, the network coding technique shall be adopted at the upper layer. Actually, the network coding is utilized to improve transmission performances of the multi-hop link in both the wireless sensor and the Mesh network. The current research interest related to the network coding technique focuses on the node selection, coding algorithm design, coding complexity evaluation, coding performance analysis, coding safety mechanism, and the application in the wireless distributed network.