Alternative Path Communication in Wide-Scale Cluster-Tree Wireless Sensor Networks Using Inactive Periods.

Area of Science:

• Wireless Sensor Networks (WSNs)
• Network Communication Protocols
• Internet of Things (IoT) Architectures

Background:

• IEEE 802.15.4/ZigBee cluster-tree topology is widely used for Wireless Sensor Networks (WSNs).
• Standard WSNs often prioritize convergecast traffic, funneling all data through the Personal Area Network (PAN) coordinator.
• This convergecast-centric design can lead to network congestion and increased communication hops, especially for applications requiring peer-to-peer communication.

Purpose of the Study:

• To propose a novel communication scheme, Alternative-Route Definition (ARounD), for WSNs.
• To address the limitations of standard cluster-tree topologies in supporting peer-to-peer communication and reducing network congestion.
• To decrease end-to-end communication delay and message drops in WSNs.

Main Methods:

• Developed the Alternative-Route Definition (ARounD) communication scheme.
• ARounD establishes alternative communication paths between source and destination nodes.
• Utilizes intermediate nodes to relay messages during their inactive periods, creating shorter inter-cluster paths.

Main Results:

• ARounD significantly decreases end-to-end communication delay compared to standard cluster-tree schemes.
• The scheme effectively reduces network congestion around the PAN coordinator.
• ARounD leads to a reduction in message drops caused by queue overflows.

Conclusions:

• The ARounD communication scheme offers a viable solution for enhancing WSN performance.
• It improves efficiency for applications requiring localized or peer-to-peer communication within WSNs.
• ARounD demonstrates potential for more robust and scalable WSN deployments.