Real-time performance evaluation of F-BTD scheme for optimized QoS energy conservation in wireless devices

This work proposes and elaborates on the realtime implementation and comparative evaluation with other similar schemes of the Fibonacci-based Backward Traffic Difference (F-BTD). The proposed scheme aims to prolong the lifetime of the nodes in real-time for MICA2dot wireless sensor nodes/motes while at the same time it aims at optimizing the QoS and the overall throughput response of each node. The F-BTD scheme allows the nodes to sleep adaptively according to the estimated volume of incoming traffic. By considering the incoming traffic, the selective F-BTD allows each node to adaptively assign a sleep-time duration for each node´s cycle by using traffic´s backward difference. The F-BTD sleep-time duration associations of each node are then comparatively evaluated in order to define a minimum duty cycle for the next sleep-time slot of the node. The proposed scheme is being evaluated through Real-Time implementation by using the MICA2dot wireless motes that are exchanging resources in a Mobile Peer-to-Peer manner using a specified motion pattern. Comparative performance evaluations with other similar schemes show the efficiency of the proposed scheme in contrast to the nodes´ lifetime extensibility. The proposed framework maximizes further the efficiency and reliability of the resource exchange process of the nodes, while it minimizes the energy consumption.