Special Issue Article
Performance Comparison on Light Weight Delay and Data Transmission Medium Access Approaches For Smart Grid Applications
A comprehensive delay performance measurement and analysis in a large-scale wireless sensor network is performed. A lightweight delay measurement system is built and a robust method to calculate the per-packet delay is presented. The method can identify incorrect delays and recover them with a bounded error. Wireless Sensor and Actor Networks (WSANs) are widely utilized in a wide range of smart grid applications along with their successful adoption in various critical areas including military and health. Delay-responsive, cross layer (DRX) data transmission, and fair and delay-aware cross layer (FDRX) data transmission medium access approaches that aim to address delay and service requirements of the smart grid are introduced here. DRX reduces the end-to-end delay while FDRX has lower collision rate.