Efficient Complex Matrix Inversion for MIMO Software Defined Radio
2007 (English)In: International Symposium on Circuits and Systems, ISCAS,2007, IEEE , 2007, 2610-2613 p.Conference paper (Refereed)
Complex matrix inversion is a very computationally demanding operation in advanced multi-antenna wireless communications. Traditionally, systolic array-based QR decomposition (QRD) is used to invert large matrices. However, the matrices involved in MIMO baseband processing in mobile handsets are generally small which means QRD is not necessarily efficient. In this paper, a new method is proposed using programmable hardware units which not only achieves higher performance but also consumes less silicon area. Furthermore, the hardware can be reused for many other operations such as complex matrix multiplication, filtering, correlation and FFT/IFFT.
Place, publisher, year, edition, pages
IEEE , 2007. 2610-2613 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-39855DOI: 10.1109/ISCAS.2007.377850Local ID: 51537ISBN: 1-4244-0920-9OAI: oai:DiVA.org:liu-39855DiVA: diva2:260704
nternational Symposium on Circuits and Systems (ISCAS 2007), 27-20 May, New Orleans, Louisiana, USA