SIMRAN'SÂ RESEARCH GROUP
MY RESEARCH
Hybrid Optical and Wireless Access Networks for Future Generation Networks
In this work, an efficient hybrid fiber and wireless (FiWi) access networks will be proposed to increase the capacity as well as flexibility towards users. Several aspects (such as capacity, radio over fiber and security) will be addressed at the optical fiber
end. At wireless end (after having the signals from optical end and solving the interface issues), fading, scattering, reflection and refraction will be analyzed.
Generalized Multi Protocol Label Switched Optical Networks with improved Quality of Service
In this work, dynamic bandwidth allocation techniques for Generalized Multi Protocol Label Switched optical networks will be developed with enhanced Quality of Service in terms of blocking probability or resource utilization. An efficient algorithm will also be proposed to enhance the flexibility and data protection in proposed optical networks.
Planar Antennas for Millimetre and Sub-millimeter Wave Applications
In this project, a designing; optimization and characterization of planar antennas will be done to improve the emission performance of millimeter and sub-millimeter waves for 5G networks. The several methods will also be developed to minimize the specific
absorption rate of planar antenna for mobile phone applications.
Real Time Water Quality Monitoring using Low Cost Optical and Wireless Sensor Networks
Water is essential for human survival. While approximately 71% of the world is covered in water, only 2.5% of this is fresh water; hence fresh water is a valuable resource that must be carefully monitored and maintained. The aim of this project will be to develop key technologies for sensing, communication and analysis of large-scale data collected from autonomous networks of perpetual/long-lived sensor nodes, followed by integration and deployment for water quality monitoring in real-time. In order to eliminate problems associated with manual water quality monitoring, our group will develop state-of-the-art solutions for real-time water quality monitoring. The goal of this research is to enable the development and eventual deployment of low-cost,
low-power, autonomous optical and wireless sensor networks to provide a fine-grained view of several critical water quality metrics over large geographic areas (cities, rivers, watersheds etc.).
Security Enhancement in All-Optical Networks
Optical Code Division Multiple Access System (OCDMA) provides potential for enhanced information security and has advantages like simplified and decentralized network control and improved spectral efficiency . In OCDMA system, it is not easy for an eavesdropper to detect the user signal without knowing the assigned code. Increasing length or number of codes can increase the security but it will also result in Multiple access interference, which may reduce the number of active users. OCDMA can be significantly used for performing multiplexing, switching and add/drop of signals of different channels over the basic or single network for multiple access instead of TDMA or WDMA . OCDMA provides the flexibility for multi-users to access several channels simultaneously in the similar time slot and over the same frequency band randomly with the help of a unique code in optical domain. A user can access any desired channel even in case of bursty traffic. It reduces the limit on number of users that can be accommodated in a network .