Multi-data mixed FFT processing optimization method

被引：0

作者：

Hong Q. ^{[1
,2
]}

Wang Z. ^{[3
]}

Guo Y. ^{[1
,2
]}

Liang L. ^{[3
]}

机构：

[1] Institute of Microelectronics of Chinese Academy of Sciences, Beijing

[2] College of Integrated Circuits, University of Chinese Academy of Sciences, Beijing

[3] College of Integrated Circuits, Beijing University of Posts and Telecommunications, Beijing

来源：

Xi'an Dianzi Keji Daxue Xuebao/Journal of Xidian University | 2022年 / 49卷 / 06期

关键词：

5G; FFT processor; high-performance; multi-mode;

D O I：

10.19665/j.issn1001-2400.2022.06.006

中图分类号：

学科分类号：

摘要：

A new computational method is proposed to support multiple FFT processing simultaneously.The method can effectively solve the performance loss of memory-based architecture FFT processors due to the computational path pipeline bubbles and the unbalanced throughput of different FFT points.A deeply pipelined WFTA algorithm-based configurable butterfly unit and a new multiple block floating-point processing unit are designed,which can support high precision computing and include one radix-9/two radix-8/three radix-5/four radix-4/five radix-3 in parallel.Based on the proposed method,a multi-mode high performance FFT processor for 4G/5G is implemented,which can support 60 modes including 64~4 096-point FFT/iFFT and 12~3 240-point DFT/iDFT computing.The processor is implemented based on 55 nm CMOS technology,with a 1.46 mm2 layout,supports 1.5GS/s in a single mode and 2.2 GS/s in a mixed mode at 500MHz.It is shown that the proposed processor can support more points and has a better performance than previous designs. © 2022 Science Press. All rights reserved.

引用

页码：42 / 50

页数：8

共 14 条

[1] SESIA S, TOUFIK I, BAKER M., LTE, The UMTS Long Term Evolution: From Theory to Practice, pp. 1-591, (2009)
[2] Specific Requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 4: Enhancements for Very High Throughput for Operation in Bands below 6 GHz IEEE Computer Society: IEEE Std 802. llac-2013, (2013)
[3] PANWAR N, SHARMA S, SINGH A K., A Survey on 5G: The Next Generation of Mobile Communication, Physical Communication, 18, 2, pp. 64-84, (2016)
[4] KONGUVEL E, KANNAN M., A Survey on FFT/IFFT Processors for Next Generation Telecommunication Systems, Journal of Circuits Systems & Computers, 27, 3, (2017)
[5] SHAHABUDDIN S, MAMMELA A, JUNTTI M, Et al., ASIP for 5G and Beyond: Opportunities and Vision [J], IEEE Transactions on Circuits and Systems ILExpress Briefs, 68, 3, pp. 851-857, (2021)
[6] BAI Baoming, MA Xiao, CHEN Wen, Et al., Preface to The Topic of Information Transmission and Access Technology for B5G/6G, Journal of Xidian university, 47, 6, pp. 1-4, (2020)
[7] MIHRET E T, HAILEG. 4G, 5G, 6G, 7G and Future Mobile Technologies, American Journal of Computer Science and Technology, 9, 2, (2021)
[8] YANG Ruike, GAO Xia, WU Fuping, Et al., Research on The Propagation Model and Communication Performance ol the 5G Millimeter Wave at The Rain Attenuation Link, Journal ol Xidian University, 49, 4, pp. 24-30, (2022)
[9] PATEL D K, SINGH S., VLSI Architecture lor Combined R2B, R4B and R8B FFT Using SDF and Modilied CSLA, 2021 International Conlerence on Computer Communication and Informatics (ICCCI), pp. 1-5, (2021)
[10] SHIH X Y, CHOU H R, LIU Y Q., VLSI Design and Implementation ol Reconligurable 46-Mode Combined-Radix-Based FFT Hardware Architecture for 3GPP-LTE Applications, IEEE Transactions on Circuits and Systems I: Regular Papers, 65, 1, pp. 118-129, (2018)

← 1 2 →