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Journal Article
16-QAM-Based Highly Spectral-Efficient E-band Communication System with Bit Rate up to 10 Gbps
- Authors
- Min-Soo Kang, Bong-Su Kim, Kwang Seon Kim, Woo-Jin Byun, Hyung Chul Park
- Issue Date
- 2012-10
- Citation
- ETRI Journal, v.34, no.5, pp.649-654
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- This paper presents a novel 16-quadrature-amplitude- modulation (QAM) E-band communication system. The system can deliver 10 Gbps through eight channels with a bandwidth of 5 GHz (71-76 GHz/81-86 GHz). Each channel occupies 390 MHz and delivers 1.25 Gbps using a 16-QAM. Thus, this system can achieve a bandwidth efficiency of 3.2 bit/s/Hz. To implement the system, a driver amplifier and an RF up-/down-conversion mixer are implemented using a 0.1 μm gallium arsenide pseudomorphic high-electron-mobility transistor (GaAs pHEMT) process. A single-IF architecture is chosen for the RF receiver. In the digital modem, 24 square root raised cosine filters and four (255, 239) Reed-Solomon forward error correction codecs are used in parallel. 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 10-5 at a signal-to-noise ratio of about 21.5 dB. © 2012 ETRI.
- KSP Keywords
- 16-ary quadrature amplitude modulation(16QAM), 25 Gbps, 5 GHz, 6 GHz, Bandwidth Efficiency, Bit Error rate, Bit rate, Communication system, Down-conversion mixer, Driver Amplifier, E-band communication