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面向分区智能反射面辅助移动物联网上行链路的预测感知结构化资源控制与半盲级联信道获取

Prediction-Aware Structured Resource Control for Partitioned IRS-Assisted Mobile IoT Uplinks With Semi-Blind Cascaded-Channel Acquisition

Hediyeh Soltanizadeh, Ardavan Rahimian

arXiv 2609.26601首次发表:更新:

发表机构

Iran University of Science and Technology; Ulster University(伊朗理工大学; 阿尔斯特大学)

机构由 AI 辅助整理,请以论文原文为准。

AI 中文总结

本研究提出预测感知确定性框架,通过半盲级联信道获取和因果控制器优化分区IRS辅助mMIMO上行链路,实现净速率提升14.09%并保证服务可行性。

AI 中文摘要

智能反射面(IRS)辅助的移动物联网上行链路需要联合控制信道老化、昂贵的级联信道状态信息(CSI)获取以及耦合的IRS/无线资源。本研究为分区IRS辅助的大规模多输入多输出(mMIMO)上行链路开发了一个统一的预测感知确定性框架。直接信道被递归跟踪,而级联信道则通过差分半盲获取选择性刷新,该获取在最小反射基线和DFT编码的IRS状态之间重用相同的未知数据块。此外,有限块获取协方差初始化降阶波束域预测,该预测仅在线传播单位波束均值,并从预计算表中检索年龄相关协方差。一个混合整数非凸公式捕获净吞吐量、公平性、中断、不确定性、切换成本和滑动窗口IRS服务。因果控制器集成了协方差底限可操作性、可行的等大小粒度、残差可行的所有权、隔离波束单次扫描细化、同块新载荷核算以及使用重新计算的不确定性感知ZF速率和双向接收机一致风险的服务优先分配。分析建立了服务可行性保持、有效信道误差界、无分布可靠性以及多项式在线扩展。在未见环境中,预测的获取底限与实际半盲误差匹配,可操作的重新校准将平均重新校准率降低了31.5%,IRS辅助控制相对于仅直接传输实现了14.09%的平均净速率增益。接收机一致的分配提高了实现速率,而消融研究支持等大小分区和单次扫描细化;在标称、移动和负载压力条件下,操作后服务违规为零。

英文摘要

Intelligent reflecting surface (IRS)-assisted mobile Internet of Things uplinks require joint control of channel aging, costly cascaded channel state information (CSI) acquisition, and coupled IRS/radio resources. This investigation develops a unified prediction-aware deterministic framework for partitioned IRS-assisted massive multiple-input multiple-output (mMIMO) uplinks. Direct channels are recursively tracked, whereas cascaded channels are selectively refreshed by differential semi-blind acquisition reusing the same unknown data block across a minimum-reflection baseline and DFT-coded IRS states. Moreover, finite-block acquisition covariances initialize reduced-order beam-domain prediction, which propagates only unit-beam means online and retrieves age-dependent covariances from precomputed tables. A mixed-integer nonconvex formulation captures net throughput, fairness, outage, uncertainty, switching cost, and sliding-window IRS service. The causal controller integrates covariance-floor actionability, feasible equal-size granularity, residual-feasible ownership, isolated-beam one-sweep refinement, same-block fresh-payload accounting, and service-first allocation using recomputed uncertainty-aware ZF rates and bidirectional receiver-consistent risk. Analysis establishes service-feasibility preservation, effective-channel error bounds, distribution-free reliability, and polynomial online scaling. In unseen environments, the predicted acquisition floor matches the practical semi-blind error, actionable recalibration reduces the mean recalibration rate by 31.5%, and IRS-assisted control achieves a 14.09% mean net-rate gain over direct-only transmission. Receiver-consistent allocation improves realized rate, while ablations support equal-size partitioning and single-sweep refinement; zero post-action service violations occur under nominal, mobility, and load-stress conditions.

论文原文

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