Reliability Analysis of Wireless Real-Time Control Networks

Abstract

Abstract-Probability of successful delivery under deadline constraints is one of the most important performance measures in a wireless real-time multihop control and sensor network. In this paper we approach the problem of determining the probability of successful packet delivery by calculating the per-link outage probability for different fading channel models. We provide easily computable results for the end-to-end reliability for two different physical layer designs. Furthermore, we show that incorporating physical layer information into routing and scheduling decisions can result in significant performance improvements when strict deadlines are imposed on the system.

A Bio-Inspired Algorithm for Route Selection in Wireless Sensor Networks

“…Output Φ i particles from the sink node T i 15: end if 16: end for 17: Calculate the flux of each edge P ij by using (4) 18: Update the conductivity of each edge M ij by using (6) 19: Calculate the number of particles stored at each node by using (7) 20: end while 21: Obtain the flux distribution pattern.…”

“…On the one hand, routing in WSNs is very challenging due to some inherent characteristics [6], [8]. First, it is not possible to build a global addressing scheme for the deployment of a relatively large numbers of sensor nodes as the overhead of ID maintenance is high.…”