Title :
Hybrid MIMO Receiver Using QR-MLD and QR-MMSE
Author :
Kim, Youngjae ; Park, Jong Hyeon ; Kim, Je Woo
Author_Institution :
Qualcomm Inc., Santa Clara, CA, USA
Abstract :
This paper proposes a new hybrid structure for the practical MIMO receiver. The receiver operates in a QRMLD mode by default and achieves near-optimal performance. On the other hand, when the communication environment is not so favorable for a QR-MLD, it switches to a QR-MMSE mode and saves the mobile computing power. Using a common structure of QR decomposition from both receivers and the novel QR-MMSE un-biasing technique, this hybrid receiver can be implemented with great simplicity.
Keywords :
MIMO communication; maximum likelihood estimation; mean square error methods; radio receivers; QR-MLD; QR-MMSE unbiasing technique; hybrid MIMO receiver; maximum likelihood detection; mobile computing power; Computational complexity; Hardware; MIMO; Matrix decomposition; Maximum likelihood decoding; Mobile communication; Mobile computing; Silicon carbide; Switches; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5425856
