By trading coverage and hardware complexity for abundance of spectrum, sub-THz mobile access networks are expected to operate under highly directive and relatively spectrally inefficient transmission regimes, while still offering enormous capacity gains over current sub-6GHz alternatives. Building on this assumption, and supported by extensive indoor directional channel measurements at 160 GHz, this study advocates the use of very simple modulation and equalization techniques for sub-THz mobile access. Specifically, we demonstrate that, under the aforementioned transmission regimes, little or no equalization is needed for scoring significant capacity gain targets. In particular, we show that single-carrier or low-number-of-subcarriers modulations are very attractive competitors to the dramatically more complex and energy inefficient traditional multi-carrier designs.
翻译:通过贸易覆盖面和大量频谱的硬件复杂性,预计次级THz移动接入网络将在高度指令性和相对光谱低效的传输系统下运行,同时仍然为目前的次级6GHz替代品带来巨大的能力增益。基于这一假设,并在160千兆赫的广泛室内定向信道测量的支持下,本研究报告主张对次级THz移动接入使用非常简单的调制和衡平技术。具体地说,我们证明,根据上述传输系统,在取得重大能力增益目标时,很少或根本不需要平等。特别是,我们表明,单载器或低量次载荷调制器对于极为复杂和能源效率低下的传统多载器设计来说,是非常有吸引力的竞争者。