A novel scheme for power saving in wireless sensor networks with packet collision

Power consumption of nodes in WSNs has a great effect on the lifetime of network nodes which are difficult to replace or recharge. In this context, this paper represents a receiver approach for alleviating power consumption of WSNs. Unlike other power consumption techniques, instead of decoding every received signal at the receiver which consume too much power our approach studies the histograms of sensors' transmitted signals to detect collisions, so the receiver can determine when the transmitted signals can be decoded without wasting precious power decoding transmitted signals suffering from collisions. Based on a set of algorithm metrics, thresholds and scenarios, our approach shows reduction in power consumption. We use MATLAB to show our power consumption performance gains.