天线位置误差对夹捏天线系统中TDMA和NOMA的影响
Impact of Antenna Position Errors on TDMA and NOMA in Pinching-Antenna Systems
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中文总结 AI 辅助
本文建模夹捏天线系统中的位置误差，分析其对TDMA和NOMA的影响，发现单天线TDMA免疫误差，多天线TDMA损失阵列增益，NOMA存在不可克服的干扰底限。
中文摘要 AI 辅助
夹捏天线系统（PASS）通过沿波导移动介质天线来创建可重构无线信道。机械位置误差会转化为相位误差，从而降低性能，然而几乎所有先前的PASS研究都假设理想放置。本文对此位置误差进行建模，推导由此产生的相位误差，并分析其对时分多址（TDMA）和非正交多址（NOMA）的影响，获得其遍历速率界和闭式中断概率。分析和仿真表明，单天线TDMA对位置误差免疫，而多天线TDMA失去阵列增益，NOMA遭受无法通过增加发射功率克服的干扰底限。
英文摘要
Pinching-antenna systems (PASS) create reconfigurable wireless channels by moving dielectric antennas along a waveguide. Mechanical position errors translate into phase errors that degrade performance, yet almost all prior PASS studies assume ideal placement. This paper models this position error, derives the resulting phase error, and analyzes its impact on time-division multiple access (TDMA) and non-orthogonal multiple access (NOMA), obtaining their ergodic-rate bounds and closed-form outage probabilities. Analyses and simulations reveal that single-antenna TDMA is immune to position error, whereas multi-antenna TDMA loses array gain and NOMA suffers an interference floor that cannot be overcome by increasing transmit power.
发表机构
- German Research Center for Artificial Intelligence (DFKI)（德国人工智能研究中心）
- University of Kaiserslautern (RPTU)（凯泽斯劳滕大学）
机构由 AI 辅助整理，请以论文原文为准。
