Latency and energy efficiency evaluation in wireless sensor networks
Xinsheng Xia, Qilian Liang · 2006
Latency and energy efficiency are two important parameters to evaluate the Wireless Sensor Networks (WSN). To reduce delays in the WSN, the sensor node will send out redun- dant packets. Suppose the WSN has a cell-partitioned structure and the two-hop relay algorithm is adopted, the relay/destination nodes selection will determin the networks performance. The fuzzy logic system (FLS) is applied to the nodes selection and three descriptors are used: distance to the source node, the remaining energy and the degree of mobility. The output of FLS application provides a node election probability and we can elect three highest probability nodes as the relay nodes and in another FLS application, we choose the highest probability node as the destination. In contrast with the cases that only consider one descriptor, the FLS application can manage the delay/energy tradeoffs to meet the network performance requirement. .