Radio communication through electromagnetic wave transmission of information, is the foundation of the information society. With the widespread application of wireless communication devices, jamming is everywhere. Jamming and Anti-jamming, is a pair of spears and shields. Bandpass filter is a common Anti-jamming measure in broadband communication to suppress out-of-band clutter and harmonics. MimoMesh wireless broadband MESH using time domain/frequency domain digital filtering and MIMO smart antenna, effectively suppress out of band jamming. At the same time, through periodic (less than 1 second) spectrum scanning, it supports the intelligent SMART frequency channel selection mode(1 MHz step), when the working frequency channel is disturbed in the equipment networking state, the optimal frequency channel without jamming can be autonomous dymamic selected by each nodes for different channels FDD transmission to effectively avoid random jamming. And support wide band channel frequency HOPPING mode, by providing different working channel sets which dymamic selected by each nodes in the working band range (up to 256 channels), high-speed independent hopping of the whole network (over 1000 hops per second), effectively avoiding malicious jamming and implemeting secure communication. In addition, the radio adopts dynamic MCS modulation coding scheme of each independent link transmission mechanisms also FEC forward error correction and ARQ error control to reduce the packet loss rate and improve the effectiveness of data transmission, implement dynamic adaptive anti-interference.
Through working frequency, channel bandwidth, system code, communication distance, working mode and other parameter settings, illegal joining is excluded. MimoMesh wireless broadband MESH, fully independent research and development, self-defining waveform, algorithm and transmission protocol, air interface transmission using 64bits key, can dynamically generate scrambling sequence to achieve channel encryption. Support DES56/AES128/AES256 source encryption to enhance security. In addition, the radio provides hardware encryption such as chips, TF cards and confidential machines.
