Design and Implementation of WSN System Based on Hybrid Multiple Access Technology
Ye Sun · Video Engineering · 2012
For the characters of WSN(Wireless Sensors Network) that distributing in various areas and having multiple missions,an improved WSN structure based on the hybrid access technology with FDMA and TDMA is designed in this paper to solve the problem of the interference in the communication between clusters.A FDMA mechanism is adopted to avoid interference among different clusters,and a sleep scheduling used TDMA is adopted in clusters.Furthermore,a time slot for monitoring is allocated in the TDMA mechanism.In the time slot,the nodes in a cluster can communicate with each other through CSMA competition if event occurring in order to increase the fairness of reporting.The project implementation is also completed and expected results are achieved.