Title :
Gram-schmidt tailed high-throughput QR decomposition architecture for MIMO detector
Author :
Dongyeob Shin ; Ji-Hwan Yoon ; Jongsun Park ; Woong Choi
Author_Institution :
Korea Univ., Seoul, South Korea
Abstract :
This paper proposes a high-speed and low latency QR decomposition (QRD) architecture. In the proposed QRD architecture, two QRD algorithms, the CORDIC-based algorithm and Gram-Schmidt, is effectively combined together to reduce hardware latency. The experimental results show that the proposed architecture implemented with Samsung 0.13 um technology achieves 16.7 % speed-up over the conventional Givens rotation-based architecture with only 5.9% area overhead for 4 × 4 matrix decomposition.
Keywords :
MIMO communication; detector circuits; digital arithmetic; logic design; matrix decomposition; CORDIC-based algorithm; Gram-Schmidt; MIMO detector; QRD algorithms; Samsung 0.13 um technology; hardware latency; high-speed QRD architecture; low latency QR decomposition architecture; matrix decomposition; rotation-based architecture; size 0.13 mum; Computer architecture; Detectors; Throughput; Givens rotation; Gram-schmidt; QR decomposition (QRD); multiple-input-multiple-output (MIMO); very large scale integration (VLSI);
Conference_Titel :
SoC Design Conference (ISOCC), 2014 International
DOI :
10.1109/ISOCC.2014.7087639
