Project Title: Cross-functional Information System for Decision Making (CISDeM)
Sponsor: Ministry of Defence, Government of Singapore.
Project Overview: CISDeM is a cyber-information research program for decision making against network security threats. It adopts an inter-disciplinary research view — spanning security, natural language processing, machine learning, signal processing, and networking — to protect mission-critical network infrastructures. It stresses an experimental approach supported by a laboratory for sensing, computing, networking, visualization, and command-and-control. The synergistic research tracks will integrate to achieve holistic decision support for agile and proactive security informed by multi-modal and multi-layer empirical data.
Thesis Title: Analysis of Collisions in Contention-Based Wireless Networks The objective of the research work was to analyse different aspects of frame collision in wireless MAC protocol design, specifically in the area of Wireless Local Area Network (WLAN). For achieving this, it was required to analyse the theoretical performance of the standard IEEE 802.11 MAC protocol followed by the design and analysis of performance tuning mechanisms from the frame collision view point. It was also important to analyse frame collision from the network security view point.
Project Title: Towards Robust Efficient and Secure Data Acquisition in Underwater Sensor Networks (TRE)
Sponsor: DIT (presently known as MeitY), Government of India.
Project Overview: Under the surface of water, networks of sensors can be used for different applications such as submarine monitoring, oil exploration, seismic monitoring and ocean mapping. Data acquisition scheme for those applications using underwater sensor networks (UWSNs) faces many challenges due to dynamic behavior of aquatic environment and acoustic communication. These behaviors include the varying levels of salinity, temperature and pressure under the surface of water, large and variable propagation delay, node mobility due to underwater current, frequent loss of connection among the nodes, very less bandwidth for communication, ambient noise of marine life, and error prone communication medium. Therefore, the objective of the project is to investigate the following issues.
Thesis Title: GSPIN: Gradient-based Sensor Protocol for Information via Negotiation in WSNs The objective of the project work was to reduce communication activity and energy consumption during information dissemination among sensor nodes in wireless sensor networks (WSNs). Heinzelman et al. proposed Sensor Protocols for Information via Negotiation (SPIN), a family of adaptive protocol, that solves the classic problem of flooding by finalizing communication decision of sensor nodes based upon application-specific knowledge of the data and knowledge of the resources that are available to them. However, the SPIN protocol has some shortcomings. Therefore, the specific objective of the Thesis work was to improve the performance of the SPIN protocol.
A summary of publications till date in Google Scholar Profile.