采用单边带单载波调制的高光谱效率W波段光/无线系统。

High spectral efficient W-band optical/wireless system employing single-sideband single-carrier modulation.

作者信息

Ho Chun-Hung, Lin Chun-Ting, Cheng Yu-Hsuan, Huang Hou-Tzu, Wei Chia-Chien, Chi Sien

出版信息

Opt Express. 2014 Feb 24;22(4):3911-7. doi: 10.1364/OE.22.003911.

DOI:10.1364/OE.22.003911

Abstract

With broader available bandwidth, W-band wireless transmission has attracted a lot of interests for future Giga-bit communication. In this article, we experimentally demonstrate W-band radio-over-fiber (RoF) system employing single-sideband single-carrier (SSB-SC) modulation with lower peak-to-average-power ratio (PAPR) than orthogonal frequency division multiplex (OFDM). To overcome the inter-symbol interference (ISI) of the penalty from uneven frequency response and SSB-SC modulation, frequency domain equalizer (FDE) and decision feedback equalizer (DFE) are implemented. We discuss the maximum available bandwidth of different modulation formats between SSB-SC and OFDM signals at the BER below forward error correction (FEC) threshold (3.8 × 10(-3)). Up to 50-Gbps 32-QAM SSB-SC signals with spectral efficiency of 5 bit/s/Hz can be achieved.

摘要

随着可用带宽的增加，W波段无线传输因其可实现未来千兆位通信而备受关注。在本文中，我们通过实验演示了采用单边带单载波（SSB-SC）调制的W波段光纤无线（RoF）系统，该系统的峰均功率比（PAPR）低于正交频分复用（OFDM）。为了克服频率响应不均匀和SSB-SC调制带来的符号间干扰（ISI）惩罚，我们实现了频域均衡器（FDE）和判决反馈均衡器（DFE）。我们讨论了在误码率低于前向纠错（FEC）阈值（3.8×10⁻³）时，SSB-SC和OFDM信号之间不同调制格式的最大可用带宽。可以实现高达50 Gbps、频谱效率为5 bit/s/Hz的32-QAM SSB-SC信号。