Adaptive photonic-assisted M2-QAM millimeter-wave synthesis in multi-antenna radio-over-fiber system using M-ASK modulation

Qi Zhang*, Jianjun Yu, Xinying Li, Xiangjun Xin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

A novel method for generating an adaptive photonic-assisted M2-quadrature amplitude modulation (M2-QAM) millimeter-wave signal in a multiantenna radio-over-fiber system using M-ray amplitude-shift keying (M-ASK) modulation is proposed and experimentally demonstrated. It takes full advantage of high-density small cells without introducing additional complexity into remote antenna units (RAUs) or mobile users. The 4, 8, and 12 Gb/s 4QAM millimeter-wave signals are obtained from two independent 2, 4, and 6 Gb/s on-off-keying 40 GHz channels, respectively. The experimental results show that a double bit rate can be received without additional digital signal processing in RAUs and mobile users. The results, including the constellation diagrams and bit error rate, show that the transmitted signals are received successfully.

Original languageEnglish
Pages (from-to)6106-6109
Number of pages4
JournalOptics Letters
Volume39
Issue number21
DOIs
Publication statusPublished - 2014
Externally publishedYes

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