16-QAM OFDM-Based W-Band Polarization-Division Duplex Communication System with Multi-gigabit Performance

作者：Kim Kwang Seon; Kim Bong Su; Kang Min Soo; Byun Woo Jin; Park Hyung Chul^*

来源：ETRI Journal, 2014, 36(2): 206-213.

DOI：10.4218/etrij.14.2113.0083

• W-band
• PDD
• OFDM
• 10 Gigabit Ethernet
• error correction code

This paper presents a novel 90 GHz band 16-quadrature amplitude modulation (16-QAM) orthogonal frequency-division multiplexing (OFDM) communication system. The system can deliver 6 Gbps through six channels with a bandwidth of 3 GHz. Each channel occupies 500 MHz and delivers 1 Gbps using 16-QAM OFDM. To implement the system, a low-noise amplifier and an RF up/down conversion fourth-harmonically pumped mixer are implemented using a 0.1-mu m gallium arsenide pseudomorphic high-electronmobility transistor process. A polarization-division duplex architecture is used for full-duplex communication. In a digital modem, OFDM with 256-point fast Fourier transform and (255, 239) Reed-Solomon forward error correction codecs are used. The modem can compensate for a carrier-frequency offset of up to 50 ppm and a symbol rate offset of up to 1 ppm. Experiment results show that the system can achieve a bit error rate of le at a signal-to-noise ratio of about 19.8 dB.

• 出版日期2014-4