Title :
LSI development of 8×8 single-user MIMO-OFDM for IEEE 802.11ac WLANs
Author :
Yoshizawa, Shingo ; Nakagawa, Daisuke ; Miyazaki, Nozomi ; Kaji, Takaya ; Miyanaga, Yoshikazu
Author_Institution :
Grad. Sch. of Inf. & Sci. Technol., Hokkaido Univ., Sapporo, Japan
Abstract :
Multiple-input multiple-output orthogonal frequency multiplexing (MIMO-OFDM) is powerful in enhancing communication capacity or reliance. The IEEE802.11n standard defines use of four spatial streams in spatial division multiplexing (SDM). The task group of IEEE802.11ac will extend it to eight spatial streams. This paper reports LSI development of an 8×8 MIMO-OFDM baseband transceiver compatible with the IEEE802.11ac specification. Two types of 8×8 MMSE MIMO detectors based on Strassen´s matrix inversion have been presented. The transceiver designed on 90-nm CMOS technology has 13.3 millions in logic gates and consumes 1.4 W in the maximum power dissipation.
Keywords :
CMOS logic circuits; MIMO communication; OFDM modulation; least mean squares methods; logic gates; radio transceivers; space division multiplexing; wireless LAN; CMOS technology; IEEE 802.11ac WLAN; LSI development; MMSE MIMO detectors; SDM; Strassen matrix inversion; multiple-input multiple-output orthogonal frequency multiplexing; power 1.4 W; single-user MIMO-OFDM baseband transceiver; size 90 nm; spatial division multiplexing; spatial streams; Detectors; MIMO; Pipelines; Receivers; Transceivers; Very large scale integration;
Conference_Titel :
Communications and Information Technologies (ISCIT), 2011 11th International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-1294-4
DOI :
10.1109/ISCIT.2011.6089703
