A new high-speed and low-power LSI design of SVD-MIMO-OFDM systems

Author

Iwaizumi, Hiroki ; Yoshizawa, Shingo ; Miyanaga, Yoshikazu

Author_Institution

Grad. Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan

fYear

2012

fDate

2-5 Oct. 2012

Firstpage

204

Lastpage

209

Abstract

In this paper, we propose a processor for singular value decomposition (SVD) and compression/decompression of feedback matrices, which is mandatory for SVD multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) systems. The SVD-MIMO is a transmission method, which can suppress multi-stream interference and improve communication quality by beamforming. Because of high calculation cost, any conventional SVD processors are unsuitable for real-time processing. We have employed an application specific instruction-set processor (ASIP) architecture and have realized the high-speed/low-power design and real-time processing by the parallelization of floating point units (FPUs) and arithmetic instructions specialized in complex matrix operations.

Keywords

MIMO communication; OFDM modulation; application specific integrated circuits; floating point arithmetic; integrated circuit design; large scale integration; low-power electronics; multiplexing equipment; singular value decomposition; SVD-MIMO-OFDM systems; application specific instruction set processor; arithmetic instructions; complex matrix operation; feedback matrix compression; feedback matrix decompression; floating point unit; high speed LSI design; low power LSI design; multiple input multiple output system; orthogonal frequency division multiplexing system; real time processing; singular value decomposition; Argon; Circuit optimization; Eigenvalues and eigenfunctions; MIMO; Matrix decomposition; Power demand;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Information Technologies (ISCIT), 2012 International Symposium on

Conference_Location

Gold Coast, QLD

Print_ISBN

978-1-4673-1156-4

Electronic_ISBN

978-1-4673-1155-7

Type

conf

DOI

10.1109/ISCIT.2012.6380892

Filename

6380892