Nemai Chandra Karmakar
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View article: Low-temperature graphitization by amine-assisted combustion of graphite oxide
Low-temperature graphitization by amine-assisted combustion of graphite oxide Open
Scalable production of bulk graphene materials, by deoxygenation and partial graphitization of graphite oxide (GO), is considered the most mature pathway towards graphene-fortified products. We reimagined a combustion process in which a mi…
View article: EVALUATING BAMBOO-REIN FOR CED PRECAST CHANNEL LININGSTOR EDUCEWATER LOSS IN IRRIGATION SYSTEMS
EVALUATING BAMBOO-REIN FOR CED PRECAST CHANNEL LININGSTOR EDUCEWATER LOSS IN IRRIGATION SYSTEMS Open
Generally, farmers adhere to recommended irrigation time for most crops, with the exception of summer paddy, where they tend to keep the crop continuously submerged. Conversely, the state of the terrain affects the depth of ponded water. I…
View article: Trade-Off Analysis for Array Configurations of Chipless RFID Sensor Tag Designs
Trade-Off Analysis for Array Configurations of Chipless RFID Sensor Tag Designs Open
The accurate detection and reliable performance of chipless radio frequency identification (RFID) tags and sensors present significant challenges due to their inherently low radar cross section (RCS) and pronounced mutual coupling effects.…
View article: Fingerprinting chipless RFID with a MIMO system for tag authentication in Internet of Things
Fingerprinting chipless RFID with a MIMO system for tag authentication in Internet of Things Open
View article: Design and Experimental Analysis of Time Domain Reflectometry-Based Chipless RFID Soil Moisture Sensor
Design and Experimental Analysis of Time Domain Reflectometry-Based Chipless RFID Soil Moisture Sensor Open
This paper presents the design and experimental analysis of a novel, cost-effective, and robust soil moisture sensor based on a non-conventional Time Domain Reflectometry (TDR) technique integrated with chipless Radio Frequency Identificat…
View article: Use of Chipless Radio Frequency Identification Technology for Smart Food Packaging: An Economic Analysis for an Australian Seafood Industry
Use of Chipless Radio Frequency Identification Technology for Smart Food Packaging: An Economic Analysis for an Australian Seafood Industry Open
Effective monitoring of perishable food products has become increasingly important for ensuring quality, enabling smart packaging to be a key consideration for food companies. Among the promising technologies available for transforming pac…
View article: Chipless RFID strain sensors: A review and performance analysis
Chipless RFID strain sensors: A review and performance analysis Open
Detecting strain in structures is crucial for structural health monitoring (SHM) to prevent severe damage in buildings, power plants, and aircraft. Chipless radio frequency identification (RFID) has widened sensing applications, providing …
View article: Impact of Crystal Orientation on Modulation Bandwidth: Towards GaN LED-Based High-Speed Visible Light Communication
Impact of Crystal Orientation on Modulation Bandwidth: Towards GaN LED-Based High-Speed Visible Light Communication Open
Light-emitting diodes (LEDs) with high modulation bandwidth are required for high-speed visible light communication applications. Crystal orientation in the GaN LED structure plays a key factor in its modulation bandwidth as the recombinat…
View article: Interference Mitigation in VLC Systems using a Variable Focus Liquid Lens
Interference Mitigation in VLC Systems using a Variable Focus Liquid Lens Open
The field of view (FOV) is an important parameter of a visible light communication (VLC) receiver. A variable FOV can be useful to mitigate interference from neighboring cells in a multi-cell VLC network. The existing works on dynamic FOV …
View article: VLC Applications for Market Penetration: Prospect, Challenges and the Future
VLC Applications for Market Penetration: Prospect, Challenges and the Future Open
Visible light communication (VLC) has attracted much attention in recent years among industrial and academic researchers. The large scale use of energy efficient light emitting diodes (LEDs) in lighting applications offers a unique opportu…
View article: Fluorescent Fiber-Based Optical Antenna for Visible Light Communication Applications
Fluorescent Fiber-Based Optical Antenna for Visible Light Communication Applications Open
Fiber-based optical antennas are useful for efficient light reception at the receiver in visible light communication (VLC) systems. It combines the principles of fiber optics and antenna technology to achieve high-speed wireless communicat…
View article: Fingerprinting Chipless RFID with a Mimo System for Tag Authentication in Internet of Things
Fingerprinting Chipless RFID with a Mimo System for Tag Authentication in Internet of Things Open
View article: Array Configurations for Chipless RFID Tags: A Trade-Off Analysis
Array Configurations for Chipless RFID Tags: A Trade-Off Analysis Open
View article: RFID localization in construction with IoT and security integration
RFID localization in construction with IoT and security integration Open
Radio Frequency Identification (RFID) systems have remarkable potential to be used in the supply chain management systems of the construction industry. RFID's ability to identify, track and locate objects provides tremendous flexibility in…
View article: Coverage Improvement of Laser Diode-Based Visible Light Communication Systems Using an Engineered Diffuser
Coverage Improvement of Laser Diode-Based Visible Light Communication Systems Using an Engineered Diffuser Open
A combination of a blue laser diode (LD) and a warm white light emitting diode (LED) has been used for indoor lighting and visible light communications (VLC). Contrary to LD and phosphor based white lighting communication, no blue LD power…
View article: A Truly 3D Visible Light Positioning System Using Low Resolution High Speed Camera, LIDAR, and IMU Sensors
A Truly 3D Visible Light Positioning System Using Low Resolution High Speed Camera, LIDAR, and IMU Sensors Open
Camera based visible light positioning (VLP) can be promising for indoor positioning applications powered by the widespread use of light emitting diodes (LEDs) in lighting applications. Most of the VLP works in the literature have either i…
View article: The Art of Substrate-Integrated-Waveguide Power Dividers
The Art of Substrate-Integrated-Waveguide Power Dividers Open
Substrate-integrated-waveguide (SIW) technology can eliminate the limitations associated with conventional rectangular waveguides, i.e., bulky structures and production complexity at higher frequencies. Moreover, SIW technology replaces mi…
View article: Health Monitoring of Conveyor Belt Using UHF RFID and Multi-Class Neural Networks
Health Monitoring of Conveyor Belt Using UHF RFID and Multi-Class Neural Networks Open
Conveyor belts in mining sites are prone to cracks, which leads to dramatic degradation of overall system performance and the breakdown of operation. Crack detection using radio frequency identification (RFID) sensing technology is recentl…
View article: An Adaptive Handover Scheme for Hybrid LiFi and WiFi Networks
An Adaptive Handover Scheme for Hybrid LiFi and WiFi Networks Open
The hybrid light fidelity (LiFi) and wireless fidelity (WiFi) network (HLWNet) is considered to be a potential component of the next generation indoor wireless networks. However, due to the susceptible line-of-sight propagation of optical …
View article: An Artificial Neural Network-Based Handover Scheme for Hybrid LiFi Networks
An Artificial Neural Network-Based Handover Scheme for Hybrid LiFi Networks Open
Combining the ultra-high user throughput of the light fidelity (LiFi) and the ubiquitous coverage of wireless fidelity (WiFi), the hybrid LiFi and WiFi network (HLWNet) demonstrates unparalleled advantages in indoor wireless data transmiss…
View article: State-of-the-Art Wearable Sensors and Possibilities for Radar in Fall Prevention
State-of-the-Art Wearable Sensors and Possibilities for Radar in Fall Prevention Open
Radar technology is constantly evolving, and new applications are arising, particularly for the millimeter wave bands. A novel application for radar is gait monitoring for fall prevention, which may play a key role in maintaining the quali…
View article: Modeling and Analysis of HAPS-based Cellular IoT Systems for Protected Areas
Modeling and Analysis of HAPS-based Cellular IoT Systems for Protected Areas Open
In this paper we consider such HAPS-based cellular systems to provide IoT coverage for protected area.
View article: Modeling and Analysis of HAPS-based Cellular IoT Systems for Protected Areas
Modeling and Analysis of HAPS-based Cellular IoT Systems for Protected Areas Open
In this paper we consider such HAPS-based cellular systems to provide IoT coverage for protected area.
View article: Physical Layer Detection and Security of Printed Chipless RFID Tag for Internet of Things Applications
Physical Layer Detection and Security of Printed Chipless RFID Tag for Internet of Things Applications Open
This paper has proposed detection and physical layer security provision for printed sensory tag systems for internet of things (IoT) applications. The printed sensory tags can be a very cost-effective way to speed up the proliferation of t…
View article: Physical Layer Detection and Security of Printed Chipless RFID Tag for Internet of Things Applications
Physical Layer Detection and Security of Printed Chipless RFID Tag for Internet of Things Applications Open
This paper has proposed detection and physical layer security provision for printed sensory tag systems for internet of things (IoT) applications. The printed sensory tags can be a very cost-effective way to speed up the proliferation of t…
View article: Screen printed chipless RFID tags on packaging substrates
Screen printed chipless RFID tags on packaging substrates Open
A chipless radio frequency identification (RFID) tag is a suitable low-cost alternative to any chip-based RFID one. The flexibility to use low-cost printing techniques makes chipless RFID a competitive technology. In this paper, we report …
View article: A dual polarised universal reader for frequency domain‐based chipless RFID tags and sensors
A dual polarised universal reader for frequency domain‐based chipless RFID tags and sensors Open
A dual‐polarised (DP) universal reader architecture is presented herein for detecting all types of frequency domain‐based chipless RFID tags and sensors. The proposed reader reads the frequency domain‐based tag and sensor data in both hori…
View article: Design and Experimental Analysis of a Novel Compact and Flexible Super Wide Band Antenna for 5G
Design and Experimental Analysis of a Novel Compact and Flexible Super Wide Band Antenna for 5G Open
This paper investigates the design and practical implementation of a novel Super Wide Band (SWB) antenna on a flexible substrate. The antenna is designed on the Ultralam 3850 substrate having a compact dimension of mm3. This an…
View article: Improved wideband phase balancing SIW unequal power divider design for the low side‐lobe array antennas
Improved wideband phase balancing SIW unequal power divider design for the low side‐lobe array antennas Open
In this paper, an eight‐way substrate integrated waveguide unequal power divider with an enhanced co‐phase bandwidth is presented, and demonstrated a potential application for the Ku‐band radiometer antennas. The proposed divider design is…
View article: Design of novel super wide band antenna close to the fundamental dimension limit theory
Design of novel super wide band antenna close to the fundamental dimension limit theory Open