Research On Low Interception Blind Channel Hopping Rendezvous Communication Technology

In order to meet the needs of the rapid growth of wireless communication and enhance the anti-jamming ability of wireless communication,wireless network under distributed control need to utilize multiple disjoint communication bands or channels flexibly to improve their communication transmission performance and avoid possible malicious interference.For this reason,the adjacent network nodes need to use channel hopping to search and switch to the same channel which available to both of them,thus they can achieve blind rendezvous and exchange control information,so as to provide efficient and reliable support for the basic network communication functions such as neighbor discovery,routing discovery and data transmission.On the other hand,in the process of blind rendezvous,malicious interferers can effectively block the wireless network control information interaction by monitoring,analyzing and intercepting channel hopping sequences of specific network nodes,and implement tracking interference.Aiming at the problems above,two asynchronous blind rendezvous channel hopping sequence methods with anti-interception ability are proposed in this paper.Among them,the first algorithm is suitable for asymmetric application scenarios where the roles of sending and receiving nodes are relatively fixed or not frequently changed in wireless networks.It not only effectively avoids the jammers from analyzing the channel hopping sequences of a specific network node by listening to the historical information of wireless network control information interaction,but also has better theoretical values of performance parameters such as maximum and average rendezvous time than the existing asymmetric asynchronous blind rendezvous channel hopping algorithms.Therefore,it can improve the performance of asynchronous wireless network control information interaction.The second algorithm is based on the relaxed cyclic difference set theory in combinatorial mathematics,which is suitable for symmetrical application scenarios where the roles of transmitters and receivers of wireless network nodes change frequently.It can not only theoretically weaken the ability of the jammers to intercept and analyze the channel hopping sequences of specific network nodes,but also obtain the maximum rendezvous time?the average rendezvous time and the maximum conditional rendezvous time which better than the existing symmetrical asynchronous blind rendezvous channel hopping sequences.In addition,based on the three jamming modes that malicious jammers may adopt,we use fixed?random and adaptive jammer to interfere these two blind rendezvous channel hopping algorithms which proposed in this paper.The performance and simulation results show that the anti-interception and analysis capabilities of these two algorithms are better than those of the existing asynchronous asymmetric and symmetric blind rendezvous channel hopping algorithms.In summary,the research results of this paper solve the problem that most of the existing wireless network control information interaction mechanisms based on blind rendezvous channel hopping which cannot effectively resist the jammers to maliciously intercept and analyze the channel hopping sequences which executed by each network node,and then realize accurate eavesdropping and improve the accuracy of adaptive interference,our algorithms improve the anti-interception and analysis abilities of wireless network blind rendezvous control information communication mechanism.