Wireless body area networks (WBAN) consist of resource constrained sensing devices just like other wireless sensor networks (WSN). However, they differ from WSN in topology, scale and security requirements. Due to these differences, key management schemes designed for WSN are inefficient and unnecessarily complex when applied to WBAN. Considering the key management issue, WBAN are also differen...

Sensor nodes in a Wireless Sensor Network (WSN) organize themselves into a cooperative network and perform the three basic functions of sensing, computations and communications. Energy constraints of the sensors pose a major challenge and have become an extensive research in WSN. An event driven secure topology discovery algorithm for a WSN is proposed where individual nodes are responsible for...

Abstract. Developing applications for wireless sensor networks (WSN) is a complicated process because of the wide variety of WSN applications and lowlevel implementation details. Model-Driven Engineering offers an effective solution to WSN application developers by hiding the details of lower layers and raising the level of abstraction. However, balancing between abstraction level and unambigui...

Wireless Sensor Networks (WSN) are becoming prevalent and represent the next great change occurring to the Internet and our living spaces. WSN are used in the medical field, smart home and smart grid initiatives, sports training, forestry and wildlife monitoring, and numerous other disciplines. WSN deployments are expected to work for long durations on scarce energy supply and stay reliable wit...

Wireless Sensor Network (WSN) routing is complex due to its dynamic nature, computational overhead, limited battery life, non-conventional addressing scheme, self-organization, and sensor nodes limited transmission range. An energy efficient routing protocol is a major concern in WSN. LEACH is a hierarchical WSN routing protocol to increase network life. It performs self-organizing and re-clust...

Abstract Recurrent influenza A virus (IAV) epidemics and occasional pandemics as a result of viral genome reassortment human adaptation pose significant health burdens globally. The non-structural protein 1 (NS1) mediates attenuation host response facilitates replication in the nucleus. While intranasal vaccination using NS1-deleted live attenuated has been shown to induce pulmonary mucosal imm...

Advances in digital electronics have enable the development of low-cost, low-power, multifunctional sensor nodes that are small in size and communicate in short distances. These tiny sensor nodes consist of sensing, data processing, and communication components, leverage the idea of Wireless Sensor Networks (WSN) based on collaborative effort of a large number of nodes. Despite the high number ...

Wireless Sensor Network (WSN) applications are prone to bugs and failures due to their typical characteristics, such as extensively distributed, heavily concurrent and resources restricted. It becomes critical to develop efficient debugging systems for WSN applications. A flexible and generic debugger for WSN applications is highly demanded. In this thesis, I proposed and developed a flexible a...