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Manufacturing of 3D stacked IC chips has became feasible recently. But testing of these 3D ICs is becoming important in the semiconductor industry. Now a days also embedded core based 3D ICs are equally popular. Hence the increased complexity in the chips becomes a constraint for the test engineers. This paper addresses a 1500-style wrapper optimization in 3D ICs based on Through Silicon Vias(TSVs)...
The paper proposes high speed FPGA implementations of adders and multipliers in Fp. The work shows through experimental results that due to optimized addition chain available in such devices, Karatsuba decomposition upto a particular level improves the performance. Further the paper modifies existing interleaved multiplier using Montgomery ladder and the high speed adder circuits. Extensive experiments...
This paper describes the load flow simulation studies of the Western grid of Bangladesh Power System using PSAT, a free and open-source software and compares the results with those from PowerWorld, a well-accepted and commercial software. The studied power system contains 41 buses and 82 interconnecting lines. To ground the basis of comparison, both of the applications were run in the same simulation...
Evolutionary optimization algorithms have been recently applied to optimal digital IIR filter design. In this paper, we apply a bandwidth adaptive harmony search (BAHS) algorithm to the design of 1-dimensional IIR filters. Harmony search is an evolutionary algorithm, which emulates the improvisation process of musicians. We have modified the algorithm by setting the bandwidth equal to the standard...
Multiplication is at the core of many data processing tasks and saving power at the multiplication level can significantly impact the lifetime of a wireless sensor network. This paper introduces a novel light-weight low-power multiplication algorithm which is tailored for sensor nodes featuring low-end microcontrollers. These microcontrollers might have no hardware multiplier, or feature a fixed-point...
In this paper a masking based data hiding and image authentication technique (MDHIAT) has been proposed by embedding a message/image into a colour image. Bits from authenticating message/image are embedded in single bit position under each byte of the source image by choosing a standard 3 times 3 mask in row major order. Point of insertion of a bit is obtained by computing modulus operation of the...
Particle Swarm Optimization (PSO) has recently emerged as a nature inspired algorithm for real parameter optimization. This article describes a method for improving the final accuracy and the convergence speed of PSO by adding a new coefficient to the position updating equation and modulating the inertia weight. This work also mathematically analyzes the effect of this modification on the PSO algorithm...
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