Interference measurement and optimization of wireless sensor network testbed

The WSN testbed plays a major role in research and emulation of practical sensor network. The testbed includes two structure units, the network under test (NUT) and the test network (TN). In application, TN introduces interference into NUT when the test network gets test information from the network under test which disturbs the operation of NUT. As a result, the experiment data may be less credible. This paper analyzes the interference based on the typical testbed, and uses the node designed by our lab for interference measurement and quantification. Also, an optimization scheme for testbed with less interference is proposed and validated by some practical test results.