@article{7ea6222380c3434bb22b2cb5727cba92,
title = "Energy efficient hardware architecture of LU triangularization for MIMO receiver",
abstract = "An energy-efficient hardware architecture of complex-valued matrix lower-upper (LU) triangularization for multi-inputmulti-output (MIMO) receivers is presented in this paper. In the LU triangularization process, Gaussian elimination operation is expressed as a series of vector-scalar products, where basic common computations can be precomputed and shared to reduce computational complexity. Our computation-sharing-based architecture was implemented using a 0.25-mu CMOS process, and the hardware can perform LU triangularization from 2×2 to 8×8 matrices. Numerical results show that the proposed architecture has considerable energy savings over conventional matrix triangularization schemes.",
keywords = "LU triangularization, Low-power very large scale integration (VLSI) design, matrix decomposition, multi-inputmulti-output (MIMO) demodulation",
author = "Choi, {Ji Woong} and Jungwon Lee and Min, {Byung Gueon} and Jongsun Park",
note = "Funding Information: Manuscript received March 11, 2009; revised March 6, 2010; accepted May 3, 2010. Date of current version August 13, 2010. This work was supported in part by the Ubiquitous Computing and Network (UCN) Project, Knowledge and Economy Frontier R&D Program of the Ministry of Knowledge Economy in Korea under UCN{\textquoteright}s Subproject 10C2-C2-30S. This work was recommended by Associate Editor M. Chakraborty. J.-W. Choi and J. Lee are with Marvell Semiconductor, Santa Clara, CA 95054 USA (e-mail: cjiwoong@marvell.com, jungwon@stanfordalumni.org). B. G. Min is with Mewtel Technology, Seoul 143-200, Korea. J. Park is with the School of Electrical Engineering, Korea University, Seoul 136-701, Korea (e-mail: jongsun@korea.ac.kr). Color versions of one or more of the figures in this paper are available online at http://ieeexplore.ieee.org. Digital Object Identifier 10.1109/TCSII.2010.2055991",
year = "2010",
month = aug,
doi = "10.1109/TCSII.2010.2055991",
language = "English",
volume = "57",
pages = "632--636",
journal = "IEEE Transactions on Circuits and Systems I: Regular Papers",
issn = "1549-8328",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "8",
}