Triangular systolic array with reduced latency for QR-decomposition of complex matrices

- The novel CORDIC-based architecture of the these weights (combiner unit). The implementation of the Triangular Systolic Array for QRD of large size complex combiner unit is rather straightforward. Opposed to that, the matrices is presented. The proposed architecture relies on QRD implementation of the weight calculation unit is quite using a three angle complex rotation approach that provides challenging. As it can be seen from (1) and (2) the main significant reduction of latency (systolic operation time) and computational problem for the ZF and MMSE algorithms is makes the QRD in such a way that the upper triangular matrix R matrix inversion, which should be done for every subcarrier (or has oniy real diagonal elements. group of several adjacent subcarriers). In 802.1 In and 802.16e systems the channel is measured using training symbols and/or

• Type: Conference
• Year: 2006
• Where: ISCAS
• Authors: Alexander Maltsev, V. Pestretsov, Roman Maslennikov, Alexey Khoryaev
• Keywords: Combiner Unit, Complex Combiner Unit, ISCAS 2006, Triangular Systolic Array