Minimizing power consumption and complexity in a programmable transmit filter bank for OFDM

2004 ◽  
Author(s):  
Alireza Mehrnia ◽  
Babak Daneshrad
Keyword(s):  
Power Consumption ◽  
Filter Bank

scholarly journals Low Complexity Non Maximally Coefficient Symmetry Multi Rate Filter Bank for Wideband Channelization

2021 ◽  
Author(s):  
Kirti Samir Vaidya ◽  
Dethe C.G ◽  
S. G. Akojwar
Keyword(s):  
Wireless Communication ◽  
Power Consumption ◽  
Input Signal ◽  
Filter Bank ◽  
Software Radio ◽  
Low Complexity ◽  
Polyphase Filter ◽  
The Individual ◽  
Hardware Efficiency ◽  
Communication Standard

Abstract For extracting the individual channels from input signal of wideband, Software Radio Channelizer was often used on multi-standard wireless communication. Despite the effective channelizer design that decreases the complexity of computational, delay and power consumption is challenging. Thus, to promote the effectiveness of the channelizer, we have provided the Non-Maximally Coefficient Symmetry Multirate Filter Bank. For this, a sharp wideband channelizer is designed to be using the latest class of masking responses with Non-maximally Decimated Polyphase Filter. Moreover, coefficient symmetry is incorporated into the Non-Maximally Coefficient Symmetry Multirate Filter Bank to improve the hardware efficiency and functionality of the proposed schemes. To prove the complexity enhancement of the proposed system, the design is analyzed with communication standard with existing methods.

scholarly journals Improving Generalized Discrete Fourier Transform (GDFT) Filter Banks with Low-Complexity and Reconfigurable Hybrid Algorithm

Digital ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 1-17
Author(s):  
Temidayo Otunniyi ◽  
Hermanus Myburgh
Keyword(s):  
Fourier Transform ◽  
Integrated Circuits ◽  
Power Consumption ◽  
Discrete Fourier Transform ◽  
High Speed ◽  
Filter Bank ◽  
Filter Design ◽  
Low Complexity ◽  
Lookup Table ◽  
Research Attention

With ever-increasing wireless network demands, low-complexity reconfigurable filter design is expected to continue to require research attention. Extracting and reconfiguring channels of choice from multi-standard receivers using a generalized discrete Fourier transform filter bank (GDFT-FB) is computationally intensive. In this work, a lower compexity algorithm is written for this transform. The design employs two different approaches: hybridization of the generalized discrete Fourier transform filter bank with frequency response masking and coefficient decimation method 1; and the improvement and implementation of the hybrid generalized discrete Fourier transform using a parallel distributed arithmetic-based residual number system (PDA-RNS) filter. The design is evaluated using MATLAB 2020a. Synthesis of area, resource utilization, delay, and power consumption was done on a Quartus 11 Altera 90 using the very high-speed integrated circuits (VHSIC) hardware description language. During MATLAB simulations, the proposed HGDFT algorithm attained a 66% reduction, in terms of number of multipliers, compared with existing algorithms. From co-simulation on the Quartus 11 Altera 90, optimization of the filter with PDA-RNS resulted in a 77% reduction in the number of occupied lookup table (LUT) slices, an 83% reduction in power consumption, and an 11% reduction in execution time, when compared with existing methods.

scholarly journals A Power-Efficient FFT Preprocessing Algorithm Utilizing Analysis Filter Bank

2018 ◽  
Vol 173 ◽  
pp. 02047
Author(s):  
Chengwu chen ◽  
Yinan Wang ◽  
Xiaoguang Liu ◽  
Jietao Diao
Keyword(s):  
Power Consumption ◽  
High Speed ◽  
Filter Bank ◽  
Parallel Structure ◽  
Time Signal ◽  
Processing Technologies ◽  
Power Efficient ◽  
Application Systems ◽  
Channel Analysis ◽  
Multi Phase

With the development of high-speed sampling and real-time signal processing technologies, the power consumption for implementing large-point FFT operations is drastically increasing in application systems. This paper presents an FFT preprocessing algorithm based on a multi-channel analysis filter bank, which is implemented by an efficient multi-phase parallel structure. The operating frequency is reduced to fs/M for each constituent channel, while the spectrum width and the resolution are maintained. Meanwhile, the valid frequency point can be correctly identified and the resulting error is controlled below -30dB. Compared with the two-dimensional FFT algorithm, the power consumption accelerating factor can reach 2.4~4 by utilizing 4-channel analysis filter bank.

scholarly journals Low Complexity Non Maximally Coefficient Symmetry Multi Rate Filter Bank for Wideband Channelization

2021 ◽  
Vol 20 ◽  
pp. 57-65
Author(s):  
Kirti Samir Vaidya ◽  
C. G. Dethe ◽  
S. G. Akojwar
Keyword(s):  
Wireless Communication ◽  
Power Consumption ◽  
Input Signal ◽  
Filter Bank ◽  
Software Radio ◽  
Low Complexity ◽  
Polyphase Filter ◽  
The Individual ◽  
Hardware Efficiency ◽  
Communication Standard

For extracting the individual channels from input signal of wideband, Software Radio Channelizer was often used on multi-standard wireless communication. Despite the effective channelizer design that decreases the complexity of computational, delay and power consumption is challenging. Thus, to promote the effectiveness of the channelizer, we have provided the Non-Maximally Coefficient Symmetry Multirate Filter Bank. For this, a sharp wideband channelizer is designed to be using the latest class of masking responses with Non-maximally Decimated Polyphase Filter. Moreover, coefficient symmetry is incorporated into the Non-Maximally Coefficient Symmetry Multirate Filter Bank to improve the hardware efficiency and functionality of the proposed schemes. To prove the complexity enhancement of the proposed system, the design is analyzed with communication standard with existing methods.

Compositional Tuning of Negative Differential Resistance in Bulk Silver Iodide Memristor

2020 ◽  
Author(s):  
SMITA GAJANAN NAIK ◽  
Mohammad Hussain Kasim Rabinal
Keyword(s):  
Power Consumption ◽  
Negative Differential Resistance ◽  
Silver Iodide ◽  
Differential Resistance ◽  
Fast Response ◽  
Low Power Consumption ◽  
Switching Effect ◽  
Memory Switching ◽  
Bulk Silver ◽  
Emerging Memory

Electrical memory switching effect has received a great interest to develop emerging memory technology such as memristors. The high density, fast response, multi-bit storage and low power consumption are their...

Filter Bank Transceivers For Ofdm and Dmt Systems

2011 ◽  
Author(s):  
Yuan-Pei Lin ◽  
See-May Phoong ◽  
P. P. Vaidyanathan
Keyword(s):  
Filter Bank

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

281. Evaluation of a High-Efficiency Filter-Bank System

2005 ◽  
Author(s):  
S. Martin ◽  
E. Moyer ◽  
B. Beamer
Keyword(s):  
Filter Bank ◽  
High Efficiency ◽  
Bank System

Analysis of Characteristics of Halogen and LED Automobile Lamps

2020 ◽  
pp. 57-62
Author(s):  
Olga Yu. Kovalenko ◽  
Yulia A. Zhuravlyova
Keyword(s):  
Power Consumption ◽  
Flip Chip ◽  
Weather Conditions ◽  
Luminous Flux ◽  
Luminous Efficacy ◽  
Colour Temperature ◽  
Study Results ◽  
Calculation Results ◽  
Mandatory Rules ◽  
Halogen Lamps

This work contains analysis of characteristics of automobile lamps by Philips, KOITO, ETI flip chip LEDs, Osram, General Electric (GE), Gtinthebox, OSLAMPledbulbs with H1, H4, H7, H11 caps: luminous flux, luminous efficacy, correlated colour temperature. Characteristics of the studied samples are analysed before the operation of the lamps. The analysis of the calculation results allows us to make a conclusion that the values of correlated colour temperature of halogen lamps are close to the parameters declared by manufacturers. The analysis of the study results has shown that, based on actual values of correlated colour temperature, it is not advisable to use LED lamps in unfavourable weather conditions (such as rain, fog, snow). The results of the study demonstrate that there is a slight dispersion of actual values of luminous flux of halogen lamps by different manufacturers. Maximum variation between values of luminous flux of different lamps does not exceed 14 %. The analysis of the measurement results has shown that actual values of luminous flux of all halogen lamps comply with the mandatory rules specified in the UN/ECE Regulation No. 37 and luminous flux of LED lamps exceeds maximum allowable value by more than 8 %. Luminous efficacy of LED lamps is higher than that of halogen lamps: more than 82 lm/W and lower power consumption. The results of the measurements have shown that power consumption of a LED automobile lamp is lower than that of similar halogen lamps by 3 times and their luminous efficacy is higher by 5 times.

ESTIMATION OF POWER CONSUMPTION DISTRIBUTION IN FPGA-PROJECTS

2014 ◽  
pp. 192-196
Author(s):  
A. Drozd ◽  
◽  
S. Mileiko ◽  
V. Kalinichenko ◽  
N. Ulchenko
Keyword(s):  
Power Consumption
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