An efficient QR decomposition design for MIMO systems

Jing Shiun Lin, Yin Tsung Hwang, Po Han Chu, Ming-Der Shieh, Shih Hao Fang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Multiple-input multiple-output (MIMO) techniques have been widely used in various wireless communication systems these days. QR factorization is a fundamental module yet computationally intensive used in many MIMO detection schemes. In this paper, a complex-valued QR factorization (CQRF) scheme realized via a sequence of real-value Givens rotations is first presented. An efficient CQRF design using coordinate rotation digital computer (CORDIC) modules is next developed. The design features a highly parallel architecture to support high throughput operations. One CQRF can be obtained in every 8 clock cycles. To reduce the circuit complexity, a pipelined CORDIC structure is also applied. The implementation results in TSMC 0.18-μm CMOS process indicate that the proposed design can achieve a throughput rate of 25MCQRFs per second while consuming only 103.7k gates in circuit complexity. Performance evaluation based on a composite index consisting of area and throughput rate also shows the advantages of the proposed design against other similar works.

Original languageEnglish
Title of host publicationISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems
Pages1508-1511
Number of pages4
DOIs
Publication statusPublished - 2012
Event2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of
Duration: 2012 May 202012 May 23

Other

Other2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012
CountryKorea, Republic of
CitySeoul
Period12-05-2012-05-23

Fingerprint

Factorization
Decomposition
Throughput
Digital computers
Parallel architectures
Networks (circuits)
Clocks
Communication systems
Composite materials

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Electrical and Electronic Engineering

Cite this

Lin, J. S., Hwang, Y. T., Chu, P. H., Shieh, M-D., & Fang, S. H. (2012). An efficient QR decomposition design for MIMO systems. In ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems (pp. 1508-1511). [6271535] https://doi.org/10.1109/ISCAS.2012.6271535
Lin, Jing Shiun ; Hwang, Yin Tsung ; Chu, Po Han ; Shieh, Ming-Der ; Fang, Shih Hao. / An efficient QR decomposition design for MIMO systems. ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. 2012. pp. 1508-1511
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Lin, JS, Hwang, YT, Chu, PH, Shieh, M-D & Fang, SH 2012, An efficient QR decomposition design for MIMO systems. in ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems., 6271535, pp. 1508-1511, 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012, Seoul, Korea, Republic of, 12-05-20. https://doi.org/10.1109/ISCAS.2012.6271535

An efficient QR decomposition design for MIMO systems. / Lin, Jing Shiun; Hwang, Yin Tsung; Chu, Po Han; Shieh, Ming-Der; Fang, Shih Hao.

ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. 2012. p. 1508-1511 6271535.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Lin JS, Hwang YT, Chu PH, Shieh M-D, Fang SH. An efficient QR decomposition design for MIMO systems. In ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. 2012. p. 1508-1511. 6271535 https://doi.org/10.1109/ISCAS.2012.6271535