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相关论文: A Rate-Splitting Strategy for Max-Min Fair Multigr…

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This paper considers the multiple-input-single-output interference channel (MISO-IC) with interference decoding capability (IDC), so that the interference signal can be decoded and subtracted from the received signal. On the MISO-IC with…

信息论 · 计算机科学 2011-07-05 Z. K. M. Ho , D. Gesbert , E. Jorswieck , R. Mochaourab

This letter proposes an active reconfigurable intelligent surface (ARIS) assisted rate-splitting multiple access (RSMA) integrated sensing and communication (ISAC) system to overcome the fairness bottleneck in multi-target sensing under…

信号处理 · 电气工程与系统科学 2026-02-13 Xin Jin , Tiejun Lv , Yashuai Cao , Jie Zeng , Mugen Peng

This paper studies the energy efficiency and sum rate trade-off for coordinated beamforming in multi-cell multi-user multigroup multicast multiple-input single-output systems. We first consider a conventional network energy efficiency…

信息论 · 计算机科学 2018-10-17 Oskari Tervo , Le-Nam Tran , Harri Pennanen , Symeon Chatzinotas , Björn Ottersten , Markku Juntti

Rate-Splitting (RS) has recently been shown to provide significant performance benefits in various multi-user transmission scenarios. In parallel, the huge degrees-of-freedom provided by the appealing massive Multiple-Input Multiple-Output…

信息论 · 计算机科学 2017-04-24 Anastasios Papazafeiropoulos , Bruno Clerckx , Tharmalingam Ratnarajah

This paper considers the downlink precoding for physical layer multicasting in massive multiple-input-multiple-output (MIMO) systems. We study the max-min fairness (MMF) problem, where channel state information (CSI) at the transmitter is…

信息论 · 计算机科学 2017-06-01 Meysam Sadeghi , Emil Björnson , Erik G. Larsson , Chau Yuen , Thomas L. Marzetta

Rate-Splitting (RS) has been proposed recently to enhance the performance of multi-user multiple-input multiple-output (MU-MIMO) systems. In RS, a user message is split into a common and a private part, where the common part is decoded by…

信号处理 · 电气工程与系统科学 2019-07-22 Abdelhamid Salem , Christos Masouros , Bruno Clerckx

Over the past few years, the prevalence of wireless devices has become one of the essential sources of electromagnetic (EM) radiation to the public. Facing with the swift development of wireless communications, people are skeptical about…

信息论 · 计算机科学 2023-04-19 Hanyu Jiang , Li You , Ahmed Elzanaty , Jue Wang , Wenjin Wang , Xiqi Gao , Mohamed-Slim Alouini

Transmit beamforming is a versatile technique for signal transmission from an array of $N$ antennas to one or multiple users [1]. In wireless communications, the goal is to increase the signal power at the intended user and reduce…

信息论 · 计算机科学 2014-07-22 Emil Björnson , Mats Bengtsson , Björn Ottersten

The multiple-input multiple-output interference channel is considered with perfect channel information at the transmitters and single-user decoding receivers. With all transmissions restricted to single stream beamforming, we consider the…

信息论 · 计算机科学 2023-07-19 Rami Mochaourab , Pan Cao , Eduard Jorswieck

This paper delves into an integrated sensing and communication (ISAC) system bolstered by a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS). Within this system, a base station (BS) is equipped with…

信息论 · 计算机科学 2024-11-15 Yuan Liu , Ruichen Zhang , Ruihong Jiang , Yongdong Zhu , Huimin Hu , Qiang Ni , Zesong Fei , Dusit Niyato

This paper considers the multi-group multicast beamforming optimization problem, for which the optimal solution has been unknown due to the non-convex and NP-hard nature of the problem. By utilizing the successive convex approximation…

信号处理 · 电气工程与系统科学 2021-04-13 Min Dong , Qiqi Wang

We address the problem of a multi-user relay network, where multiple single-antenna node pairs want to exchange information by using a multiple antenna relay node. Due to the half-duplex constraint of the relay, the exchange of information…

信息论 · 计算机科学 2010-12-23 Aydin Sezgin , Holger Boche , Amir Salman Avestimehr

In this paper, we address the power allocation problem for a decode and forward (DF) relay system, where a massive multiple-input-multiple-output (mMIMO) multi-carrier (MC) base station (BS) node communicates with a MC single antenna node…

信息论 · 计算机科学 2019-08-01 Vimal Radhakrishnan , Omid Taghizadeh , Rudolf Mathar

We consider the problem of coordinated multi- cell downlink beamforming in massive multiple input multiple output (MIMO) systems consisting of N cells, Nt antennas per base station (BS) and K user terminals (UTs) per cell. Specifically, we…

信息论 · 计算机科学 2015-04-09 Subhash Lakshminarayana , Mohamad Assaad , Merouane Debbah

We consider joint beamforming and stream allocation to maximize the weighted sum rate (WSR) for non-coherent joint transmission (NCJT) in user-centric cell-free MIMO networks, where distributed access points (APs) are organized in clusters…

信号处理 · 电气工程与系统科学 2024-02-29 Xi Wang , Xiaotong Zhao , Juncheng Wang , You Li , Qingjiang Shi

In this paper, system design for the multi-input multi-output (MIMO) relay broadcast channel with individual signal-to-interference-plus-noise ratio (SINR) constraints at the mobile stations (MS) is considered. By exploring the structure of…

信息论 · 计算机科学 2011-03-01 Chun-Che Chien , Hsuan-Jung Su , Hsueh-Jyh Li

This paper studies the fair transmission design for an intelligent reflecting surface (IRS) aided rate-splitting multiple access (RSMA). IRS is used to establish a good signal propagation environment and enhance the RSMA transmission…

信息论 · 计算机科学 2024-03-18 Shanshan Zhang , Wen Chen , Qingqing Wu , Ziwei Liu , Shunqing Zhang , Jun Li

In this letter, we investigate the signal-to-interference-plus-noise-ratio (SINR) maximization problem in a multi-user massive multiple-input-multiple-output (massive MIMO) system enabled with multiple reconfigurable intelligent surfaces…

信号处理 · 电气工程与系统科学 2023-04-06 Somayeh Aghashahi , Zolfa Zeinalpour-Yazdi , Aliakbar Tadaion , Mahdi Boloursaz Mashhadi , Ahmed Elzanaty

This paper studies the coordinated beamforming design problem for the multiple-input single-output (MISO) interference channel, assuming only channel distribution information (CDI) at the transmitters. Under a given requirement on the rate…

信息论 · 计算机科学 2016-11-18 Wei-Chiang Li , Tsung-Hui Chang , Che Lin , Chong-Yung Chi

We consider decentralized multi-antenna cognitive radio networks where secondary (cognitive) users are granted simultaneous spectrum access along with license-holding (primary) users. We treat the problem of distributed beamforming and rate…

信息论 · 计算机科学 2015-05-13 Ali Tajer , Narayan Prasad , Xiaodong Wang