基于自组网的多路由冗余传输算法研究

A Multipath Redundant Transmission Algorithm Based on MANET

摘要:

随着“网络中心战”、“网电一体战”概念的提出，自组网在组网通信中扮演着越来越重要的角色。在实际应用中，自组网常常面临着电磁频谱环境复杂，无线设备侦听干扰频繁等问题，对网络的抗干扰、抗截获性能提出了更高的要求。针对上述问题，提出一种多路由冗余传输算法，源节点对原始数据进行冗余编码，利用多径路由协议发现多条路由并行传输编码包，目的节点只需接收到一定数量的编码包即可恢复出全部原始信息。该算法有效融合了多径路由和冗余编码的特点，具有抗干扰、抗截获和无需重传的优势。利用OPNET Modeler仿真平台进行仿真建模，测试了多路由冗余传输算法下通信节点对之间收发包数量以及监听节点截获数据包情况。试验表明，多路由冗余传输算法能有效提高网络的抗干扰、抗截获性能。

Abstract:

With the proposing of “Network Center Warfare” and “Integrated Electricity Network Warfare”, MANET plays an important role in network communication. The practical application environment of MANET is usually filled with complex electromagnetic spectrum, frequent hostile monitor and hostile interference, which resulting in higher requirements about the performance of anti-jamming and anti-interception. According to the above questions, the multipath redundant transmission algorithm is proposed: source node redundant codes the original data into coding packets, parallelly transports the coding packets by the paths calculated by the multipath routing protocol, and destination node can recover the original data by receiving a certain number of coding packets. Combining the multipath routing protocol with redundant coding, the algorithm proposed has the advantage of anti-jamming, anti-interference and without retransmission. Based on OPNET Modeler platform, the number of the packets between the communication nodes under the scenario of lost packet caused by interference and the packets intercepted by monitor node is tested. The test shows that the multipath redundant transmission algorithm can effectively improve the network performance of anti-jamming and anti-interception.