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相关论文: Weighted Sum-Rate Maximization for Movable Antenna…

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A pinching antenna system (PASS) assisted cell-free communication system is proposed. A sum rate maximization problem under the BS power budget constraint and PA deployment constraint is formulated. To tackle the proposed non-convex…

信号处理 · 电气工程与系统科学 2026-05-20 Haochen Li , Jiayi Lei , Cheng Zeng , Zhaoming Hu , Chao Dong , Yuanwei Liu

In this paper, we investigate the downlink multiple-input-multipleoutput (MIMO) broadcast channels in which a base transceiver station (BTS) broadcasts multiple data streams to K MIMO mobile stations (MSs) simultaneously. In order to…

信息论 · 计算机科学 2015-08-06 Tung T. Vu , Ha Hoang Kha , Trung Q. Duong , Nguyen-Son Vo

This paper studies the problem of hybrid holographic beamforming for sum-rate maximization in a communication system assisted by a reconfigurable holographic surface. Existing methodologies predominantly rely on gradient-based or…

信号处理 · 电气工程与系统科学 2025-03-24 Chandan Kumar Sheemar , Wali Ullah Khan , George C. Alexandropoulos , Manzoor Ahmed , Symeon Chatzinotas

Intelligent reflecting surface (IRS) is a promising solution to build a programmable wireless environment for future communication systems. In practice, an IRS consists of massive low-cost elements, which can steer the incident signal in…

信号处理 · 电气工程与系统科学 2019-05-31 Huayan Guo , Ying-Chang Liang , Jie Chen , Erik G. Larsson

MIMO interference network optimization is important for increasingly crowded wireless communication networks. We provide a new algorithm, named Dual Link algorithm, for the classic problem of weighted sum-rate maximization for MIMO…

信息论 · 计算机科学 2016-04-05 Xing Li , Seungil You , Lijun Chen , An Liu , Youjian , Liu

This paper investigates new efficient transmission architectures for multi-satellite massive multiple-input multiple-output (MIMO). We study the weighted sum-rate maximization problem in a multi-satellite system where multiple satellites…

信号处理 · 电气工程与系统科学 2026-03-24 Wenjing Cao , Yafei Wang , Jinshuo Zhang , Xiaofan Xu , Wenjin Wang , Symeon Chatzinotas , Björn Ottersten

Movable antennas (MAs) have recently garnered significant attention in wireless communications due to their capability to reshape wireless channels via local antenna movement within a confined region. However, to achieve accurate antenna…

信息论 · 计算机科学 2025-05-12 Xin Wei , Weidong Mei , Xuan Huang , Zhi Chen , Boyu Ning

Intelligent reflecting surface (IRS) and movable antenna (MA) technologies have been proposed to enhance wireless communications by creating favorable channel conditions. This paper investigates the joint beamforming and antenna position…

信号处理 · 电气工程与系统科学 2025-08-29 Yue Geng , Tee Hiang Cheng , Kai Zhong , Kah Chan Teh , Qingqing Wu

Movable antenna (MA) has gained increasing attention in the field of wireless communications due to its exceptional capability to proactively reconfigure wireless channels via localized antenna movements. In this paper, we investigate the…

信号处理 · 电气工程与系统科学 2025-06-16 Nianzu Li , Peiran Wu , Lipeng Zhu , Derrick Wing Kwan Ng

In this paper, we consider a MU-MISO system where users have highly accurate Channel State Information (CSI), while the Base Station (BS) has partial CSI consisting of an imperfect channel estimate and statistical knowledge of the CSI…

信息论 · 计算机科学 2015-02-13 Hamdi Joudeh , Bruno Clerckx

This paper investigates a movable antenna (MA)-enabled wireless-powered communication network (WPCN), where multiple wireless devices (WDs) first harvest energy from the downlink (DL) signal broadcast by a hybrid access point (HAP) and then…

信号处理 · 电气工程与系统科学 2026-01-15 Ying Gao , Qingqing Wu , Wen Chen

Movable antennas (MAs), traditionally explored in antenna design, have recently garnered significant attention in wireless communications due to their ability to dynamically adjust the antenna positions to changes in the propagation…

信号处理 · 电气工程与系统科学 2024-08-09 Boyu Ning , Songjie Yang , Yafei Wu , Peilan Wang , Weidong Mei , Chau Yuen , Emil Björnson

This paper investigates the utility of movable antenna (MA) assistance for the multiple-input single-output (MISO) interference channel. We exploit an additional design degree of freedom provided by MA to enhance the desired signal and…

信息论 · 计算机科学 2024-04-04 Honghao Wang , Qingqing Wu , Wen Chen

Characterizing the global maximum of weighted sum-rate (WSR) for the K-user Gaussian interference channel (GIC), with the interference treated as Gaussian noise, is a key problem in wireless communication. However, due to the users' mutual…

信息论 · 计算机科学 2016-11-17 Liang Liu , Rui Zhang , Kee-Chaing Chua

This paper proposed new hybrid, analog-digital, beamforming for a multiuser millimeter wave (mm-wave) relay system. For this system, we consider a sum rate maximization problem. The proposed hybrid beamforming is designed indirectly by…

信息论 · 计算机科学 2016-11-17 Xuan Xue , Tadilo Endeshaw Bogale , Xianbin Wang , Yongchao Wang , Long Bao Le

This correspondence studies the wireless powered over-the-air computation (AirComp) for achieving sustainable wireless data aggregation (WDA) by integrating AirComp and wireless power transfer (WPT) into a joint design. In particular, we…

信息论 · 计算机科学 2023-05-18 Siyao Zhang , Xinmin Li , Yin Long , Jie Xu , Shuguang Cui

Due to the low power consumption and low cost nature of transmissive reconfigurable intelligent surface (RIS),in this paper, we propose a downlink multi-user rate-splitting multiple access (RSMA) architecture based on the transmissive RIS…

信息论 · 计算机科学 2023-07-25 Bojiang Li , Wen Chen , Zhendong Li , Qingqing Wu , Nan Cheng , Changle Li , Linglong Dai

Relay-aided transmission is envisioned as a key strategy to combat severe path loss and link blockages emerging as unique challenges in millimeter-wave (mmWave) communications. This work considers a relay-aided multiuser mmWave…

信息论 · 计算机科学 2020-03-09 Ahmet Zahid Yalcin , Yavuz Yapici

In this letter, we investigate an important and famous issue, namely weighted mean-square-error (MSE) minimization transceiver designs. In our work, for transceiver designs a novel weighted MSE model is proposed, which is defined as a…

信息论 · 计算机科学 2013-02-28 Chengwen Xing , Wenzhi Li , Shaodan Ma , Zesong Fei , Jingming Kuang

In this paper, we consider the channel estimation problem in Millimeter wave (mmWave) wireless systems with large antenna arrays. By exploiting the inherent sparse nature of the mmWave channel, we develop a novel rate-adaptive channel…

信息论 · 计算机科学 2016-09-12 Matthew Kokshoorn , He Chen , Yonghui Li , Branka Vucetic