In this paper, we have experimentally demonstrated the first flexible-rate optoelectronic terahertz wireless transmission system at 101 GHz based on multiband CAP-PAM modulation and cost-efficient envelope detection. Instead of traditional M-QAM mapping, PAM-N mapping is used in CAP modulation with low-computational complexity. The system performances and optimal capacity in both single-band case and multiband case are intensively investigated. The results show that the highest data rate for single-band system is 13.35 Gbit/s with CAP-PAM-5 modulation, while the optimum aggregate transmission line rate of 8.49 Gbit/s can be obtained with 4-sub-bands CAP-PAM-{5,3,2,2} modulation under 7% FEC limit of 3.8 × 10⁻³ for four-user access.

中文翻译：

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使用多频带 CAP-PAM 调制和包络检测的 101 GHz 灵活速率光电无线传输系统

在本文中，我们通过实验证明了第一个基于多频段 CAP-PAM 调制和经济高效的包络检测的 101 GHz 灵活速率光电太赫兹无线传输系统。与传统的 M-QAM 映射不同，PAM-N 映射用于计算复杂度低的 CAP 调制。深入研究了单频段和多频段情况下的系统性能和最佳容量。结果表明，CAP-PAM-5调制的单频段系统最高数据速率为13.35 Gbit/s，而4子带CAP-PAM可得到8.49 Gbit/s的最佳聚合传输线速率-{5,3,2,2} 调制在 7% FEC 限制下 3.8 × 10 ^-3用于四用户访问。