Application of cognitive radio to wireless sensor networks in underground coalmine
Yan Liu · Transducer and Microsystem Technologies · 2009
In order to realize environmental monitoring of coalmine effectively,a concept called cognitive radio-wireless sensor networks(CR-WSNs) is proposed combining CR technology with WSNs technology.Special working environment of the coalmine is analysed,and the structure of CR-WSNs system,the hardware of node and the communication between each module are introduced.A simple test program is given.The actual test result shows that the CR-WSNs has much better ability to resist interference than ordinary WSNs.