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Orthogonal delay-Doppler division multiplexing (ODDM) modulation has recently gained significant attention as a promising candidate to promote the communication reliability in high-mobility environments. Low complexity signal detection is…

理论经济学 · 经济学 2025-07-23 Jiasong Han , Xuehan Wang , Jintao Wang

This paper develops an integrated OTFS-RSMA framework employing advanced SP techniques tailored for this demanding environment. We derive refined communication performance metrics, specifically SINR expressions capturing the practical…

信号处理 · 电气工程与系统科学 2025-06-04 Bruno Felipe Costa , Taufik Abrão

Fluid antenna multiple access (FAMA) enables each user to rapidly switch among several closely spaced ports and select the strongest received signal. Although this mechanism offers micro-scale spatial diversity, its behavior in multiuser…

信息论 · 计算机科学 2026-05-25 Anastasios Papazafeiropoulos

In this paper, the effects of interference on composite fading environments, where multipath fading coexists with shadowing, are investigated. Based on some mathematical convenient expressions for the sum of squared…

信息论 · 计算机科学 2014-06-17 Petros S. Bithas , Athanasios A. Rontogiannis

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

In massive MIMO systems, the matched filter (MF) beamforming is attractive technique due to its extremely low complexity of implementation compared to those high-complexity decomposition-based beamforming techniques such as zero-forcing,…

网络与互联网体系结构 · 计算机科学 2014-11-26 Shu Feng , Gu Chen , Wang Mao , Stevan Berber , You Xiaohu

This work studies the signal-to-interference-plus-noise-ratio (SINR) meta distribution for the uplink transmission of a Poisson network with Rayleigh fading by using the dominant interferer-based approximation. The proposed approach relies…

信息论 · 计算机科学 2023-09-12 Yujie Qin , Mustafa A. Kishk , Mohamed-Slim Alouini

In this work, we characterize the outage probability (OP) of an intelligent reflecting surface (IRS) assisted multi-user multiple-input-single-output (MU-MISO) communication system. Using a two-step approximation method, we approximate the…

信息论 · 计算机科学 2022-08-09 Lakshmi Jayalal , Shashank Shekhar , Athira Subhash , Sheetal Kalyani

This paper addresses the problem of exploiting interference among simultaneous multiuser transmissions in the downlink of multiple-antenna systems. Using symbol-level precoding, a new approach towards addressing the multiuser interference…

信息论 · 计算机科学 2016-11-17 Maha Alodeh , Symeon Chatzinotas , Bjorn Ottersten

We study the wireless scheduling problem in the SINR model. More specifically, given a set of $n$ links, each a sender-receiver pair, we wish to partition (or \emph{schedule}) the links into the minimum number of slots, each satisfying…

数据结构与算法 · 计算机科学 2014-05-02 Magnus M. Halldorsson , Pradipta Mitra

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

We present the first algorithm that implements an abstract MAC (absMAC) layer in the Signal-to-Interference-plus-Noise-Ratio (SINR) wireless network model. We first prove that efficient SINR implementations are not possible for the standard…

分布式、并行与集群计算 · 计算机科学 2015-05-19 Magnus M. Halldorsson , Stephan Holzer , Nancy Lynch

An asymptotic technique is developed to find the Signal-to-Interference-plus-Noise-Ratio (SINR) and spectral efficiency of a link with N receiver antennas in wireless networks with non-homogeneous distributions of nodes. It is found that…

信息论 · 计算机科学 2015-03-17 Siddhartan Govindasamy , Daniel W. Bliss

This paper analyses the performance of filter bank multicarrier (FBMC) signaling in conjunction with offset quadrature amplitude modulation (OQAM) in multi-user (MU) massive multiple-input multiple-output (MIMO) systems. Initially, closed…

信号处理 · 电气工程与系统科学 2019-12-17 Prem Singh , Himanshu B. Mishra , Aditya K. Jagannatham , K. Vasudevan , Lajos Hanzo

In this paper we propose a downlink codebook-based opportunistic interference alignment (OIA) in a three-cell MIMO system. A codebook composed of multiple transmit vector sets is utilized to improve the multiuser selection diversity. The…

信息论 · 计算机科学 2014-03-20 Haijing Liu , Hui Gao , Wei Long , Tiejun Lv

Closed-form approximations to the expected per-terminal signal-to-interference-plus-noise-ratio (SINR) and ergodic sum spectral efficiency of a large multiuser multiple-input multiple-output system are presented. Our analysis assumes…

信息论 · 计算机科学 2017-05-11 Harsh Tataria , Peter J. Smith , Michail Matthaiou , Pawel A. Dmochowski

We consider a multi-cell massive multiple-input-multiple-output (MIMO) system with correlated Rayleigh fading channels, where pilot reuse is permitted within each cell (to reduce pilot overhead), and each base station (BS) utilizes…

信息论 · 计算机科学 2025-07-08 Masoud Elyasi , Azadeh Vosoughi

This paper investigates the downlink power allocation of the simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS)-assisted cell-free massive multiple-input multiple-output (MIMO) system with multi-antenna…

信息论 · 计算机科学 2025-12-23 Jun Qian , Ross Murch , Khaled B. Letaief

In this paper, we investigate the downlink throughput performance of a massive multiple-input multiple-output (MIMO) system that employs superimposed pilots for channel estimation. The component of downlink (DL) interference that results…

信息论 · 计算机科学 2019-04-16 Karthik Upadhya , Sergiy A. Vorobyov , Mikko Vehkapera

This paper investigates the spectral efficiency of multi-cell massive multiple-input multiple-output systems with Ricean fading that utilize the linear maximal-ratio combining detector. We firstly present closed-form expressions for the…

信息论 · 计算机科学 2018-08-28 Pei Liu , Kai Luo , Da Chen , Tao Jiang , Michail Matthaiou