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Distributed IRS with Statistical Passive Beamforming for MISO Communications
arXiv - CS - Information Theory Pub Date : 2020-09-14 , DOI: arxiv-2009.06286 Yuwei Gao, Jindan Xu, Wei Xu, Derrick Wing Kwan Ng, and Mohamed Slim Alouini
arXiv - CS - Information Theory Pub Date : 2020-09-14 , DOI: arxiv-2009.06286 Yuwei Gao, Jindan Xu, Wei Xu, Derrick Wing Kwan Ng, and Mohamed Slim Alouini
Intelligent reflecting surface (IRS) has recently been identified as a
prominent technology with the ability of enhancing wireless communication by
dynamically manipulating the propagation environment. This paper investigates a
multiple-input single-output (MISO) system deploying distributed IRSs. For
practical considerations, we propose an efficient design of passive reflecting
beamforming for the IRSs to exploit statistical channel state information (CSI)
and analyze the achievable rate of the network taking into account the impact
of CSI estimation error. The ergodic achievable rate is derived in a closed
form, which provides insightful system design guidelines. Numerical results
confirm the accuracy of the derived results and unveil the performance
superiority of the proposed distributed IRS deployment over the conventional
centralized deployment.
中文翻译:
用于 MISO 通信的具有统计无源波束成形的分布式 IRS
最近,智能反射面 (IRS) 被认为是一种通过动态操纵传播环境来增强无线通信能力的突出技术。本文研究了一个部署分布式 IRS 的多输入单输出 (MISO) 系统。出于实际考虑,我们为 IRS 提出了一种有效的被动反射波束成形设计,以利用统计信道状态信息 (CSI) 并在考虑 CSI 估计误差的影响的情况下分析网络的可实现速率。遍历可实现率以封闭形式导出,提供了有见地的系统设计指南。
更新日期:2020-09-15
中文翻译:
用于 MISO 通信的具有统计无源波束成形的分布式 IRS
最近,智能反射面 (IRS) 被认为是一种通过动态操纵传播环境来增强无线通信能力的突出技术。本文研究了一个部署分布式 IRS 的多输入单输出 (MISO) 系统。出于实际考虑,我们为 IRS 提出了一种有效的被动反射波束成形设计,以利用统计信道状态信息 (CSI) 并在考虑 CSI 估计误差的影响的情况下分析网络的可实现速率。遍历可实现率以封闭形式导出,提供了有见地的系统设计指南。