Faculty Research

In the Connected Systems and Wireless Networking research group, communication is not treated as just the transfer of data, but as a way of making technology truly useful in the real world. Whether it is a remote sensor in a village, a satellite collecting environmental data, or a smart device operating on limited battery power, the goal is simple: ensure that information reaches where it is needed reliably, efficiently, and on time.

At the heart of this work lies the world of IoT (Internet of Things) and wireless communication. Today, billions of small devices like sensors, trackers, and meters are constantly sending tiny packets of data. These devices often operate in challenging environments: remote locations, harsh weather, or places where network infrastructure is minimal or completely absent. In such scenarios, technologies like LoRaWAN and LPWAN enable long-range communication using very little power, making them ideal for large-scale deployments. But with these advantages come important challenges like how to ensure reliability, how to reduce energy consumption, and how to keep delays low.

One of the key ideas explored in my research group is message replication. Imagine sending an important message multiple times so that even if one copy is lost, another still gets through. This improves reliability, but it also consumes more energy and can increase network congestion. The research introduces smarter ways to handle this trade-off. Instead of simply repeating messages blindly, a hybrid approach is developed where replicas can either be sent separately or cleverly embedded within other transmissions. This balance helps achieve both reliability and energy efficiency, which is something traditional methods struggle to do.