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Estimating the Lifetime of Wireless Sensor Network Nodes through the Use of Embedded Analytical Battery Models

ABSTRACT

The operation of Wireless Sensor Networks ( WSN s) is subject to multiple constraints, among which one of the most critical is available energy. Sensor nodes are typically powered by electrochemical batteries. The stored energy in battery devices Continue reading

Primary Hepatocytes Cultured on a Fiber-Embedded PDMS Chip to Study Drug Metabolism

ABSTRACT

In vitro drug screening using reliable and predictable liver models remains a challenge. The identification of an ideal biological substrate is essential to maintain hepatocyte functions during in vitro culture. Here, we developed a fiber-embedded Continue reading

BSMR: Byzantine-Resilient Secure Multicast Routing in Multi-hop Wireless Networks

ABSTRACT

Multi-hop wireless networks rely on node cooperation to provide unicast and multicast services. The multi-hop communication offers increased coverage for such services, but also makes them more vulnerable to insider (or Byzantine) attacks coming Continue reading

A Network-Aware Distributed Membership Protocol for Collaborative Defense

ABSTRACT

To counteract current trends in network malware, distributed solutions have been developed that harness the power of collaborative end-host sensors. While these systems greatly increase the ability to defend against attack, this comes at the cost Continue reading

Bluetooth-base Worm Modeling And Simulation

ABSTRACT

Bluetooth is one of the most popular technologies in the world in the new century. Meanwhile it attracts attackers to develop new worm and malicious code attacking Bluetooth wireless network. So far the growth of mobile malicious code is very fast Continue reading

Antenna Allocation in MIMO Radar with Widely Separated Antennas for Multi-Target Detection

ABSTRACT

In this paper, we explore a new resource called multi-target diversity to optimize the performance of multiple input multiple output (MIMO) radar with widely separated antennas for detecting multiple targets. In particular, we allocate antennas of the MIMO Continue reading

Precise Calibration of a GNSS Antenna Array for Adaptive Beamforming Applications

ABSTRACT

The use of global navigation satellite system (GNSS) antenna arrays for applications such as interference counter-measure, attitude determination and signal-to-noise ratio (SNR) enhancement is attracting significant attention. However, precise antenna array Continue reading

RF-to-DC Characteristics of Direct Irradiated On-Chip Gallium Arsenide Schottky Diode and Antenna for Application in Proximity Communication System

ABSTRACT

We report the RF-to-DC characteristics of the integrated AlGaAs/GaAs Schottky diode and antenna under the direct injection and irradiation condition. The conversion efficiency up to 80 % under direct injection of 1 GHz signal to the diode was achieved. It was found Continue reading

A New Metasurface Superstrate Structure for Antenna Performance Enhancement

ABSTRACT

A new metasurface superstrate structure (MSS)-loaded dual band microstrip line-fed small patch antenna is presented in this paper. The proposed antenna was designed on a ceramic-filled bioplastic sandwich substrate with a high dielectric constant. Continue reading

The Design of RFID Convey or Belt Gate Systems Using an Antenna Control Unit

ABSTRACT

This paper proposes an efficient management system utilizing a Radio Frequency Identification (RFID) antenna control unit which is moving along with the path of boxes of materials on the conveyor belt by manipulating a motor. The proposed antenna Continue reading

Microstrip Patch Antenna Assisted Compact Dual Band Planar Crossover

ABSTRACT

In Microwave Monolithic Integrated Circuits, crossovers maintain signal purity when transmission lines overlap with each other. A simple crossover for dual band applications, particularly suitable for the development of smart antennas, is presented in this Continue reading