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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.11 No.1
- 발행연도
- 2011.3
- 수록면
- 6 - 14 (9page)
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초록· 키워드
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This paper presents a high-speed QR decomposition architecture for the multi-input-multioutput (MIMO) receiver based on Givens rotation. Under fast-varying channel, since the inverse matrix calculation has to be performed frequently in MIMO receiver, a high performance and low latency QR decomposition module is highly required. The proposed QR decomposition architecture is composed of Sign-Select Lookahead (SSL) coordinate rotation digital computer (CORDIC). In the SSL-CORDIC, the sign bits, which are computed ahead to select which direction to rotate, are used to select one of the last iteration results, therefore, the data dependencies on the previous iterations are efficiently removed. Our proposed QR decomposition module is implemented using TSMC 0.25 ㎛ CMOS process. Experimental results show that the proposed QR architecture achieves 34.83% speed-up over the Compact CORDIC based architecture for the 4 × 4 matrix decomposition.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. SYSTEM MODEL AND QR DECOMPOSITION ALGORITHM
Ⅲ. SIGN-SELECT LOOKAHEAD CORDIC ARCHITECTURE
Ⅳ. HIGH PERFORMANCE QR DECOMPOSITION ARCHITECTURE BASED ON SIGN-SELECT LOOKAHEAD CORDIC
Ⅴ. NUMERICAL RESULTS
Ⅵ. CONCLUSIONS
ACKNOWLEDGMENTS
REFERENCES
참고문헌 (21)
참고문헌 신청
1. [학술지(정기간행물)] - Qinghua Li / 2010 / MIMO Techniques in WiMAX and LTE: A Feature Overview / Communications Magazine, IEEE 48 (5) : 86 ~ 92
2. [단행본] - T. Kailath / 2005 / MIMO receive algorithms / Cambridge Univ. Press
3. [학술지(정기간행물)] - L. J. Cimini / 1985 / Analysis and Simulation of a Digital Mobile Channel using Orthogonal Frequency Division Multiplexing / Communications, IEEE Transactions on 33 (7) : 665 ~ 675
4. [학술대회논문] - C. K. Singh / 2007 / VLSI Architecture for Matrix Inversion using Modified Gram-Schmidt based QR Decomposition / VLSI Design, 2007. Held jointly with 6th International Conference on Embedded Systems., 20th International Conference on : 836 ~ 841
5. [학술지(정기간행물)] - D. C. Yu / 1990 / A New Parallel LU Decomposition Method / Power Systems, IEEE Transactions 5 (1) : 303 ~ 310
2. [단행본] - T. Kailath / 2005 / MIMO receive algorithms / Cambridge Univ. Press
3. [학술지(정기간행물)] - L. J. Cimini / 1985 / Analysis and Simulation of a Digital Mobile Channel using Orthogonal Frequency Division Multiplexing / Communications, IEEE Transactions on 33 (7) : 665 ~ 675
4. [학술대회논문] - C. K. Singh / 2007 / VLSI Architecture for Matrix Inversion using Modified Gram-Schmidt based QR Decomposition / VLSI Design, 2007. Held jointly with 6th International Conference on Embedded Systems., 20th International Conference on : 836 ~ 841
5. [학술지(정기간행물)] - D. C. Yu / 1990 / A New Parallel LU Decomposition Method / Power Systems, IEEE Transactions 5 (1) : 303 ~ 310
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