AI 中文总结
研究6G无线网络中双频段基站能效极限，通过联合优化硬件参数和睡眠模式，确定运行区域并推导分析阈值，为未来绿色网络功耗最小化与睡眠模式管理提供数学指导。
AI 中文摘要
随着6G无线网络向太赫兹以下（sub-THz）频段过渡以满足极高容量需求，在大量带宽与功耗之间进行权衡成为关键设计挑战。本文研究了结合面向覆盖的低于6GHz载波和面向容量的太赫兹以下载波的双频段基站的基本能效（EE）极限。通过经由活动因子联合优化硬件参数和高级睡眠模式，确定了四个不同的运行区域，它们在整个数据速率范围内控制EE最优行为。推导出封闭形式的分析阈值，精确规定太赫兹以下频段何时应从睡眠中唤醒以及如何在频段间分配流量。结果表明，当带宽受限的低于6GHz频段的功率成本超过激活太赫兹以下电路的静态功率惩罚时，使用太赫兹以下频段是EE最优的。最终，该框架为未来绿色网络中的功耗最小化和睡眠模式管理提供了数学上严格的指导方针。
英文摘要
As 6G wireless networks transition toward sub-Terahertz (sub-THz) frequencies to satisfy extreme capacity demands, managing the trade-off between massive bandwidth and power consumption becomes a critical design challenge. In this paper, we investigate the fundamental energy efficiency (EE) limits of a dual-band base station site combining a coverage-oriented sub-6 GHz carrier with a capacity-oriented sub-THz carrier. By jointly optimizing hardware parameters and advanced sleep modes via activity factors, we identify four distinct operational regions that govern the EE-optimal behavior across the complete range of data rates. We derive closed-form analytical thresholds that dictate precisely when the sub-THz band should awaken from sleep and how to allocate traffic between the bands in that case. Our results demonstrate that utilizing the sub-THz band is EE-optimal when the power cost of the bandwidth-limited sub-6 GHz band surpasses the static power penalty of activating the sub-THz circuitry. Ultimately, this framework provides mathematically rigorous guidelines for power consumption minimization and sleep-mode management in future green networks.
Comments6 pages, 3 figures
Journal refInternational Conference on Communications, Signal Processing, and their Applications (ICCSPA), 2026
