Title :
A 7Gb/s SC-FDE/OFDM MMSE equalizer for 60GHz wireless communications
Author :
Hsiao, Frank ; Tang, Adrian ; Yang, Derek ; Pham, Mike ; Chang, Mau-Chung Frank
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
This paper presents a SC-FDE/OFDM MMSE equalizer for 60GHz wireless communications in 65nm CMOS process. By applying a 4-parallel signal processing architecture, the 512pt FFT/IFFT processor, the Golay channel estimator, and the MMSE equalizer are all clocked at 1/4 input symbol sampling rate. Occupying a core area of 1.12mm2, the symbol sampling rate at 1V supply is 1.46GS/s. With 16QAM modulation, its throughput is 5.84Gb/s while consuming 124mW in the SC-FDE mode and 88mW in the OFDM mode. With a 1.2V supply, it achieves a symbol sampling rate of 1.76GS/s with a 7Gb/s throughput while consuming 208mW in the SC-FDE mode and 148mW in the OFDM mode.
Keywords :
CMOS integrated circuits; OFDM modulation; equalisers; fast Fourier transforms; least mean squares methods; quadrature amplitude modulation; 16QAM modulation; 4-parallel signal processing architecture; CMOS process; FFT-IFFT processor; Golay channel estimator; MMSE; OFDM; SC-FDE; bit rate 7 Gbit/s; equalizer; frequency 60 GHz; Channel estimation; Clocks; Correlators; Equalizers; Frequency domain analysis; OFDM; Throughput;
Conference_Titel :
Solid State Circuits Conference (A-SSCC), 2011 IEEE Asian
Conference_Location :
Jeju
Print_ISBN :
978-1-4577-1784-0
DOI :
10.1109/ASSCC.2011.6123570
