Tamoghna Ojha

Tamoghna Ojha
Indian Institute of Technology Kharagpur | IIT KGP · Department of Information Technology

PhD student

About

22
Publications
8,789
Reads
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1,062
Citations
Additional affiliations
July 2016 - present
Indian Institute of Technology Kharagpur
Position
  • Research Assistant
Description
  • (Autumn-2016) - Programming and Data Structures Lab. (CS19001)
April 2016 - April 2016
Naval Physical and Oceanographic Laboratory (DRDO)
Position
  • Research Assistant
Description
  • Short-term Course on "Underwater Sensor Networks: Theory and Simulations"
November 2013 - present
Indian Institute of Technology Kharagpur
Position
  • Senior Researcher
Education
July 2014 - June 2018
Indian Institute of Technology Kharagpur
Field of study
  • Sensor-Cloud Computing
January 2011 - June 2014
Indian Institute of Technology Kharagpur
Field of study
  • Underwater Sensor Networks
September 2008 - February 2009
Centre for Development of Advanced Computing, Mohali
Field of study
  • Embedded Systems

Publications

Publications (22)
Conference Paper
In this paper, we propose a dynamic duty scheduling scheme for minimizing the energy consumption of the on-field sensor networks in a sensor-cloud application framework. The conjugation of cloud framework with Wireless Sensor Networks (WSNs) adds enhanced processing and storage capacity to the on-field WSN applications. However, the WSN application...
Article
The advent of Wireless Sensor Networks (WSNs) spurred a new direction of research in agricultural and farming domain. In recent times, WSNs are widely applied in various agricultural applications. In this paper, we review the potential WSN applications, and the specific issues and challenges associated with deploying WSNs for improved farming. To f...
Article
Full-text available
Future large-scale deployment of plug-in hybrid electric vehicles (PHEVs) will render massive energy demand on the electric grid during peak-hours. We propose an intelligent distributed dynamic pricing (D2P) mechanism for the charging of PHEVs in a smart grid architecture — an effort towards optimizing the energy consumption profile of PHEVs users....
Conference Paper
In a smart grid, micro-grids can exchange energy among themselves in order to provide reliable energy service to customers. Therefore, the micro-grids need to exchange their real-time energy status with other micro-grids, which, in turn, maximizes the energy consumption and CO2 emissions to them. In this paper, we propose a cloud-based energy forec...
Article
Traditionally, sensor networks are surmised to enhance safety in underground mines by providing consistent monitoring of the conditions. However, to cope with the frequent condition changes of such a hostile environment, we need a specific network architecture for the deployed nodes to enable dynamic decision making. In this article, we argue that...
Article
Node localization is a fundamental requirement in underwater sensor networks (UWSNs) due to the ineptness of GPS and other terrestrial localization techniques in the underwater environment. In any UWSN monitoring application, the sensed information produces a better result when it is tagged with location information. However, the deployed nodes in...
Article
The advent of the Internet of Things (IoT) inspired various new and enhanced sets of applications in multiple domains including agriculture. The recent drive in the adoption of IoT technologies offers a major enhancement for the agricultural sectors in terms of efficiency and scalability. In this paper, we investigate the specific issues and challe...
Article
In this paper, we propose a Self-adaptive AUV-based Localization (SEAL) scheme, which is specifically designed to provide network-wide localization service to sensor nodes in sparsely deployed Underwater Sensor Networks (UWSN) using a high-speed Autonomous Underwater Vehicle (AUV). Even though the sparse nature of node deployment in UWSN is cost-ef...
Article
Virtual sensor provisioning is an essential process in sensor-cloud based Internet of Things (IoT), and it is responsible for efficient utilization of physical resources in the system. However, the existing schemes for virtual sensor provisioning do not provide an optimal solution while considering overall demand of multiple users/services. As a re...
Article
The advent of the sensor-cloud framework empowers the traditional wireless sensor networks (WSNs) in terms of dynamic operation, management, storage, and security. In recent times, the sensor-cloud framework is applied to various real-world applications. In this paper, we highlight the benefits of using sensor-cloud framework for the efficient addr...
Article
Full-text available
In this paper, real-time energy trading in smart grid is modeled as an optimization process under uncertainties of demand and price information — a problem perspective that is divergent from the ones in the existing literature. Energy trading in smart grid is affected by demand uncertainties — intermittent behavior of renewable energy sources, pack...
Article
Full-text available
In this paper, energy trading for the distributed smart grid architecture is projected as an incomplete information game—a viewpoint that contrasts from all the existing pieces of literature available on the broader issue of energy management in smart grid. The incomplete information is considered as the real-time demand and price to grid and custo...
Article
This paper analyzes the effects of near-surface oceanic bubble plumes on the overall performance of Underwater Wireless Acoustic Sensor Networks (UWASNs). The existence of bubble plumes in surface and sub-surface ocean water columns is inevitable in most windy oceanic environments. There exists studies reporting the anomalous behavior of acoustic s...
Article
This paper focuses on the performance analysis of Underwater Wireless Acoustic Sensor Networks (UWASNs) with passively mobile sensor nodes moving because of the influence of major oceanic forces. In an UWASN, passive node mobility is inevitable. Therefore, the performance analysis of UWASNs renders meaningful insights with the inclusion of a mobili...
Article
In this paper, we have analyzed the performance of distributed Underwater Wireless Acoustic Sensor Networks (UWASNs) in the presence of internal solitons in the ocean. Internal waves commonly occur in a layered oceanic environment having differential medium density. So, in a layered shallow oceanic region, the inclusion of the effect of internal so...
Article
In this study, the authors propose Tic-Tac-Toe-Arch, an 'energy-efficient', 'self-organising', and 'virtual' network architecture for Underwater Sensor Networks (UWSNs). In UWSNs, underwater currents play a major role for connectivity disruption. The Tic-Tac-Toe-Arch is capable of self-organising the selection of active nodes to maintain the connec...
Conference Paper
In this paper, we introduce a 3-dimensional, distributed, iterative, and ‘silent’ localization protocol for Mobile Underwater Sensor Networks (MUSNs) named as Mobility Assisted Localization Scheme (MobiL). The existing solutions addressing the localization problem in underwater sensor networks (UWSNs) either consider the sensor nodes to be stationa...
Conference Paper
The existing solutions that have been proposed to address the localization problem for mobile Underwater Sensor Networks (UWSNs) exhibit performance challenges such as high message overhead, localization error, and cost. Few Autonomous Underwater Vehicle (AUV) based methods were introduced to utilize the flexibility of movement of an AUV. In this p...

Questions

Question (1)
Question
Are the Autonomous Underwater Vehicles (AUVs) capable of finding Angle of Arrival of an incoming signal?

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Projects

Projects (2)
Archived project
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, in this project we have scoped down our work to the investigation of the following issues. - Development of a robust architecture for UWSN. - Design and Development of a UWSN simulator. - Designing delay, disruption and fault tolerant routing protocols for UWSN. - Identification of the different types of security attacks in UWSNs and designing security protocols for defense against DoS (Jamming) attacks in UWSN.
Project
To develop an integrated system that will combine field scale measurements with regional scale near real time hydrologic/remote sensing monitoring to improve water use efficiency and agricultural productivity in India.