More-threshold-based scheme for optimal performance of data decision in wireless sensor networks
Yun Liu · Journal of Northeast Normal University · 2013
In the current large-scale distributed detection,the sensor nodes transmit binary decisions to the fusion center(FC).The fusion center also consider the unreliable decision,thus cause the fusion center error probability is increased.Based on more-threshold-based scheme.Set two thresholds at each sensor node,if sensor nodes has less-informative,that will make the nodes in a dormant state,do not sent the decisions,whereas the more informative sensor nodes transmit their decisions to the FC.The experimental results illustrate that more-threshold-based scheme have a higher error exponent,can lower the probability of error at FC,and improve the judgment performance of system.