Date of Award


Document Type

Doctoral Thesis

Degree Name

Doctor of Philosophy


Electronic Engineering

First Advisor

Dr. Dirk Pesch


Since their inception, Wireless Sensor Networks (WSNs) have been successfully employed as low-rate data gathering networks in numerous monitoring applications. Recently, a new domain of WSNs applications, known as Cyber-Physical Systems (CPS) has started attracting significant attention world-wide. In these applications, monitoring only the state of the physical system (process or environment) is not sufficient, the system must respond to the sensed events/data within certain time constraints by performing actions upon the physical entity. It is expected that in approaching years, WSNs will be integrated in a myriad of CPS applications, for example high confidence medical systems, assisted living, traffic control and safety, advanced automotive systems, smart buildings, intelligent transportation system, electric power grid, industrial automation and so on. These applications demand good network connectivity for reliable and timely collection of sensor data to accurately monitor and control the process/phenomenon. However, fulfilling these requirements is a challenging task due to the highly resource-constrained nature of WSN nodes, the unreliable wireless channel and their use in harsh environments.

This dissertation presents a suite of novel approaches to protocol design for IEEE802.15.4 enabled WSNs which make careful use of WSN nodes’ resources while meeting communication reliability and delay requirements.

Access Level