Abstract:
Cyber-physical systems (CPSs) comprise physical systems or objects incorporated with computing functionalities and data storage systems. Different sensor nodes
in a CPS communicate with each other and devices like actuators and microcontrollers regulate the physical systems
through smart algorithms. Efficient communication and
networking algorithms play a critical role in supporting
smooth interaction between the cyber and physical worlds.
Internet of Things (IoT) belongs to the physical part of
CPS. In the physical part, the sensor nodes are connected
with each other and each node sends data to the root
node through their respective parent node in a multi-hop
manner. The physical devices in a CPS may stop sensing
the environment due to logical and physical failures. To
solve this, we propose a real time defective nodes detection
scheme (R2D) in a cyber-physical system. The root node
of the CPS gathers sensed data, detects the defective nodes
and performs data analysis in the cyber part of the CPS.
The results show that our proposed R2D protocol achieves
a 10.2% higher packet delivery ratio and a 12.5% increase
in throughput as compared to the flooding approach.
Moreover, an improvement by almost 50% in throughput
is observed when compared to RPL with an increase in
packet loss rate of 20%.
