针对无线链路的不可靠性和物理层的广播特性,将网络编码与无线网络相结合,提出一种基于流的无线网络编码算法——FNC。该算法在先验参考路径的基础上,充分利用每个节点处的路由表项,探测编码机会,在有编码机会的节点对满足编码条件的数据流进行网络编码,达到提高网络吞吐量的目的。仿真结果表明:FNC有效提高了整个网络的吞吐量,改善了网络性能。 In view of the unreliability of the wireless link and the broadcast characteristics of the physical layer, the network coding and wireless network are combined to propose a flow-based wireless network coding algorithm - FNC. Based on a priori reference path, this algorithm makes full use of routing entries at each node to detect coding opportunities and encodes the data streams that meet the encoding conditions on nodes with coding opportunities to achieve the purpose of improving network throughput . The simulation results show that FNC can effectively improve the throughput of the whole network and improve the network performance.