scholarly journals Power Efficient Multiply Accumulate Architectures using Modified Parallel Prefix Adders for Low Power Applications

2020 ◽  
Vol 9 (4) ◽  
pp. 615-623
Author(s):  
Rakesh S ◽  
K. S. Vijula Grace
Keyword(s):  
Low Power ◽  
Power Efficient ◽  
Parallel Prefix ◽  
Prefix Adders

scholarly journals Low Power High Speed Arithmetic Circuits

2019 ◽  
Vol 8 (2) ◽  
pp. 807-813 ◽  
Keyword(s):  
Low Power ◽  
System Design ◽  
High Speed ◽  
Arithmetic Circuits ◽  
Booth Multiplier ◽  
Vedic Multiplier ◽  
Vlsi System ◽  
Parallel Prefix ◽  
Prefix Adders ◽  
Vlsi System Design

In the Design of arithmetic circuits reducing area, high speed and power are the major areas in VLSI system design. In this paper parallel prefix adders like Kogge-stone adder, Breunt-Kung adder, Ladner-Fischer adder is designed .Radix-4 Booth multiplier is designed by using Kogge-Stone adder. 16 bit Vedic multiplier is done by using Urdhwa Triyambaka sutra .8bit Vedic division is implemented by using Crumbs method so as to reduce the area, LUT tables and increase the speed as well as to reduce the Power dissipiation. The design is synthesized using Xilinx ISE 14.1 design suite.

Low Power Parallel Prefix Adder

2014 ◽  
Vol 573 ◽  
pp. 194-200 ◽  
Author(s):  
P. Kowsalya ◽  
M. Malathi ◽  
Palaniappan Ramanathan
Keyword(s):  
Low Power ◽  
Power Saving ◽  
Fundamental Operation ◽  
Parallel Prefix ◽  
Power Delay Product ◽  
Prefix Adder ◽  
Prefix Adders

Addition is a fundamental operation of all Arithmetic and Logic Units (ALU).The speed of addition operation decides the computational frequency of ALU. In order to improve the performance of the binary adder, the parallel prefix adder are preferred. There are various parallel prefix adders available. This work focuses on designing 8-bit prefix adders such as Brent Kung ,Kogge Stone and Sklansky adders using GDI technique. The performance of these GDI based prefix adders are compared with that of CMOS based prefix adder. GDI based prefix adders out performs CMOS based prefix adders in terms of power delay product (PDP). The design is implemented and simulated by DSCH2 and MICROWIND tool .The simulation result reveal about 31%,40% and 50 % of power saving is attained and the number of transistors also reduced.

scholarly journals Ultracompact and low-power-consumption silicon thermo-optic switch for high-speed data

Nanophotonics ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 937-945
Author(s):  
Ruihuan Zhang ◽  
Yu He ◽  
Yong Zhang ◽  
Shaohua An ◽  
Qingming Zhu ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
High Speed ◽  
High Performance ◽  
Pulse Amplitude ◽  
Telecommunication Networks ◽  
Low Power Consumption ◽  
Power Efficient ◽  
High Speed Data ◽  
On Chip

AbstractUltracompact and low-power-consumption optical switches are desired for high-performance telecommunication networks and data centers. Here, we demonstrate an on-chip power-efficient 2 × 2 thermo-optic switch unit by using a suspended photonic crystal nanobeam structure. A submilliwatt switching power of 0.15 mW is obtained with a tuning efficiency of 7.71 nm/mW in a compact footprint of 60 μm × 16 μm. The bandwidth of the switch is properly designed for a four-level pulse amplitude modulation signal with a 124 Gb/s raw data rate. To the best of our knowledge, the proposed switch is the most power-efficient resonator-based thermo-optic switch unit with the highest tuning efficiency and data ever reported.

scholarly journals CMOS based Power Efficient Digital Comparator with Parallel Prefix Tree Structure

2018 ◽  
Vol 7 (2.7) ◽  
pp. 647
Author(s):  
J Lakshmi Prasanna ◽  
V Sahiti ◽  
E Raghuveera ◽  
M Ravi Kumar
Keyword(s):  
Complementary Metal Oxide Semiconductor ◽  
Logic Gates ◽  
Tree Structure ◽  
Oxide Semiconductor ◽  
Least Significant Bit ◽  
Power Efficient ◽  
Prefix Tree ◽  
Digital Comparator ◽  
Parallel Prefix ◽  
Transmission Gates

A 128-Bit Digital Comparator is designed with Digital Complementary Metal Oxide Semiconductor (CMOS) logic, with the use of Parallel Prefix Tree Structure [1] technique. The comparison is performed on Most Significant Bit (MSB) to the Least Significant Bit (LSB). The comparison for the lower order bits carried out only when the MSBs are equal. This technique results in Optimized Power consumption and improved speed of operation. To make the circuit regular, the design is made using only CMOS logic gates. Transmission gates were used in the existing design and are replaced with the simple AND gates. This 128-Bit comparator is designed using Cadence TSMC 0.18µm technology and optimized the Power dissipation to 0.28mW and with a Delay of 0.87μs. 

scholarly journals Design of Power Efficient 32-Bit Processing Unit

2018 ◽  
Vol 7 (2.16) ◽  
pp. 52
Author(s):  
Dharmavaram Asha Devi ◽  
Chintala Sandeep ◽  
Sai Sugun L
Keyword(s):  
Low Power ◽  
System Design ◽  
Power Analysis ◽  
Low Power Design ◽  
Design Flow ◽  
Processing Unit ◽  
Verilog Hdl ◽  
Power Efficient ◽  
Front End ◽  
Verification Process

The proposed paper is discussed about the design, verification and analysis of a 32-bit Processing Unit.  The complete front-end design flow is processed using Xilinx Vivado System Design Suite software tools and target verification is done by using Artix 7 FPGA. Virtual I/O concept is used for the verification process. It will perform 32 different operations including parity generation and code conversions: Binary to Grey and Grey to Binary. It is a low power design implemented with Verilog HDL and power analysis is implementedwith clock frequencies ranging from 10MhZ to 100GhZ. With all these frequencies, power analysis is verified for different I/O standards LVCMOS12, LVCMOS25 and LVCMOS33.  

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