WSN域间多路复用信息抗攻击安全传输方案OA

In order to improve the inter-domain anti-attack performance of wireless sensor networks and ensure the security of informa-tion transmission,a secure transmission scheme for inter-domain multiplexed information against attack in wireless sensor networks is proposed.The scheme analyzes the channel transmission characteristics of wireless sensor networks according to the inter-domain struc-ture,and combines the network information transmission principle of multiplex technology to build an inter-domain multiplex information transmission model of wireless sensor networks.The model is based on HRC-MAC protocol,and uses the characteristics of code division multiplexing to carry out upstream spread spectrum and downstream modulation of information.Combined with threshold method,infor-mation encryption and transmission control are carried out to reduce the decay loss of channel transmission and improve the security of information transmission.The test results show that the transmission security capacity of the algorithm is above 1.5 bps/Hz,and the transmission security rate meets the safety rate standard.The security coefficient of channel transmission in the domain is above 0.917.The anti-attack performance of information encryption is more than 90.2%.It can complete the disturbance of the information sequence and greatly avoid tampering in the process of information transmission.