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Institution

Heritage Institute of Technology

About: Heritage Institute of Technology is a based out in . It is known for research contribution in the topics: Steganography & Support vector machine. The organization has 581 authors who have published 1045 publications receiving 8345 citations.


Papers
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Proceedings ArticleDOI
03 Sep 2015
TL;DR: A hardware scheme to perform precise localization of non-cooperative primary users based on the measurement of Received Signal Strength Indicator at the receiver and among all non cooperative localization algorithms, the Weighted Centroid Localization (WCL) scheme is chosen.
Abstract: Detection of spectrum holes in Cognitive Radio Networks (CRNs) is possible using theory of compressive sensing (CS). At the same time, these unlicensed Cognitive secondary users (SUs) must reliably detect the presence of licensed users or owners of spectrum holes to avoid interference. Precise localization of the transmitting nodes is a complicated but important problem for operation of Cognitive Radio Networks. To ensure the effectiveness of spectrum sharing, it is desirable to locate primary users, secondary users, and unauthorized users in a non-interactive fashion based on limited measurement data at receivers. Localization of non-cooperative objects refers to the process of locating an object that is not intentionally participating in the localization process but still interferes with the radio spectrum. In this paper, we have proposed a hardware scheme to perform precise localization of non-cooperative primary users based on the measurement of Received Signal Strength Indicator (RSSI) at the receiver. Among all non cooperative localization algorithms, we have chosen the Weighted Centroid Localization (WCL) scheme. To improve the localization accuracy, a classical propagation model with correction factor has been introduced. A modified WCL scheme has been used for precise calculation of Unknown PUs' Coordinates. The main challenge in RSSI based localization is its high sensitivity to the changes possible in radio frequency (RF) environment. The nature of RSSI measurements limits the accuracy in the estimation. To improve the localization accuracy, a classical RF propagation model namely log-normal shadowing is used. Usually to model Cognitive Radio (CR) the shadowing effects cannot be neglected. If the shadowing effect is neglected, the Path Loss is simply a straight line and becomes unrealistic. To make our model more realistic, a correction factor by way of a standard deviation-σ has been added to the classical model. Experiment has been performed to simulate different environmental scenarios by keeping all the node positions fixed. Calculation of unknown PUs' distance has been plotted with and without the correction factor for comparison.

2 citations

Journal ArticleDOI
TL;DR: In this paper, an indigenous mixed microbial culture was collected from effluent treatment plant of a coke oven industry, which has been employed to biodegrade bi-substrate mixture of phenol and m-cresol under aerobic batch reactor operation.

2 citations

Proceedings ArticleDOI
01 Mar 2017
TL;DR: Improved set-point tracking with fewer oscillations and faster recovery after undesired load changes justify the superiority of the proposed MRAC-PD controller compared to conventional MRAC and this fact is also substantiated with smaller values of performance indices.
Abstract: Conventional controllers with fixed tuning fail to perform satisfactorily for processes with time varying nature. In such cases adaptive controllers are preferred as they are capable to provide suitable corrective measure according to the changes of process dynamics and undesired process upsets. In model reference adaptive control (MRAC) desired process output specifications are provided in the form of a reference model. Adaptation algorithm adjusts the controller output according to the difference between the outputs of the actual process and reference model along with a fixed adaptation gain. This paper deals with an improved MRAC technique designed for under-damped second-order processes with dead-time. In the proposed modified MRAC design, proportional-derivative (PD) feedback is incorporated with the conventional MRAC structure and the resulting controller is termed as MRAC-PD. Improved set-point tracking with fewer oscillations and faster recovery after undesired load changes justify the superiority of the proposed MRAC-PD controller compared to conventional MRAC and this fact is also substantiated with smaller values of performance indices — integral absolute error (IAE) and integral time absolute error (ITAE) under close-loop operation.

2 citations

Book ChapterDOI
05 Feb 2020
TL;DR: A Community-driven Information System for Rural Artisans (CISRA) which identifies the selection of artisans in fairness manner as a strategy to boost market opportunities of rural producers is proposed.
Abstract: Most e-commerce platforms have been developed as sales and marketing channels, offering artisans of all skill levels equal opportunities for growth and provide very low-cost worldwide visibility. These strategies never allow any artisans to give opinions about willingness to accept/reject orders due to personal inconvenience, wages, item shipping deadlines, etc. Extant exogenous approaches undertaken to provide rural producers with direct access to market have mostly done so sporadically, by incorporating measures that are not designed in accordance with rural context and needs. In this context, this paper attempts to securing active participation of rural producers in the process of production by considering the opinion and purposive collaboration between relevant rural-urban agents by allocating an order to the rural artisans. This paper will propose a Community-driven Information System for Rural Artisans (CISRA) which identifies the selection of artisans in fairness manner as a strategy to boost market opportunities of rural producers. We used a simulator called AnyLogic to ensure fairness and scalability in the artisan selection method and to measure the efficiency of our allocation model. The simulator will optimize the allocation policies of a job to the artisans based on the opinion value.

2 citations

Proceedings ArticleDOI
04 Jan 2019
TL;DR: The aim of creating a hub would be to create digitally empowered resilient communities who are not only prepared to prevent or minimize the risk of damage to life, property, and the environment due to disaster, but also have the ability to quickly reinstate their normal life and livelihood after a crisis, reopen businesses, and restore other essential services needed for the full economic recovery.
Abstract: Natural disasters like cyclones are a common phenomenon in India, especially in coastal regions. During disaster, victims of a village/ locality normally take shelters in groups in some nearby safe areas (for example, Multi Purpose Cyclone Shelters). Despite of having access to physical infrastructure with basic facilities, disaster victims at cyclone shelters often find it difficult to communicate their exact situational information (like, resource needs and damage information) directly to the local/central authorities. Due to lack of coordination among relief workers and the remote central office, conflicting demands are often generated, causing mismanagement and delay in relief operation. This paper proposes innovative usage of social technology to build resilient community, a mandatory prerequisite to enhance disaster preparedness and coping up mechanisms among collectives inhabited in vulnerable areas. This paper presents an architecture of a Knowledge Informatics Hubs using social technologies at local multipurpose cyclone shelters (MPCS) in coastal areas that will empower the local community members to interact and collaborate with each other, establish communication with various supporting agencies during disaster, establish links with experts and participate in local governance. The aim of creating such a hub would be to create digitally empowered resilient communities who are not only prepared to prevent or minimize the risk of damage to life, property, and the environment due to disaster, but also have the ability to quickly reinstate their normal life and livelihood after a crisis, reopen businesses, and restore other essential services needed for the full economic recovery.

2 citations


Authors

Showing all 581 results

NameH-indexPapersCitations
Debnath Bhattacharyya395786867
Samiran Mitra381985108
Dipankar Chakravorty353695288
S. Saha Ray342173888
Tai-hoon Kim335264974
Anindya Sen291093472
Ujjal Debnath293353828
Anirban Mukhopadhyay291693200
Avijit Ghosh281212639
Mrinal K. Ghosh26642243
Biswanath Bhunia23751466
Jayati Datta23551520
Nabarun Bhattacharyya231361960
Pinaki Bhattacharya191141193
Dwaipayan Sen18711086
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20227
2021110
202087
201992
201883
2017103