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相关论文: A Dynamic Clustering and Resource Allocation Algor…

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In the cell-free massive multiple-input multiple-output (CF mMIMO) system, the centralized transmission scheme is widely adopted to manage the inter-user interference. Unfortunately, its implementation is limited by the extensive signaling…

信号处理 · 电气工程与系统科学 2022-08-02 Hongkang Yu , Xinquan Ye , Yijian Chen

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, an underlay cognitive radio (CR) multicast network, consisting of a cognitive base station (CBS) and multiple multicast groups of secondary users (SUs), is considered. All SUs, belonging to a particular multicast group, are…

网络与互联网体系结构 · 计算机科学 2018-08-31 Sangeeta Bhattacharjee , Tamaghna Acharya , Uma Bhattacharya

In this paper, we consider resource allocation in the 3GPP Long Term Evolution (LTE) cellular uplink, which will be the most widely deployed next generation cellular uplink. The key features of the 3GPP LTE uplink (UL) are that it is based…

网络与互联网体系结构 · 计算机科学 2013-12-02 Narayan Prasad , Honghai Zhang , Hao Zhu , Sampath Rangarajan

In this paper, we study the joint resource allocation algorithm design for downlink and uplink multicarrier transmission assisted by a shared user equipment (UE)-side distributed antenna system (SUDAS). The proposed SUDAS simultaneously…

信息论 · 计算机科学 2015-06-25 Derrick Wing Kwan Ng , Marco Breiling , Christian Rohde , Frank Burkhardt , Robert Schober

Resource allocation is a key factor in multiuser (MU) multiple-input multiple-output (MIMO) wireless systems to provide high quality of service to all user equipments (UEs). In congested scenarios, UE scheduling enables UEs to be…

信息论 · 计算机科学 2026-03-04 Victoria Palhares , Christoph Studer

This paper investigates the sum-rate gains brought by power allocation strategies in multicell massive multipleinput multiple-output systems, assuming time-division duplex transmission. For both uplink and downlink, we derive tractable…

信息论 · 计算机科学 2015-06-11 Qi Zhang , Shi Jin , Matthew McKay , David Morales-Jimenez , Hongbo Zhu

This work presents joint interference suppression and power allocation algorithms for DS-CDMA networks with multiple hops and decode-and-forward (DF) protocols. A scheme for joint allocation of power levels across the relays subject to…

信息论 · 计算机科学 2013-04-09 Rodrigo C. de Lamare

This paper investigates the energy efficiency (EE) optimization in downlink multi-cell massive multiple-input multiple-output (MIMO). In our research, the statistical channel state information (CSI) is exploited to reduce the signaling…

信息论 · 计算机科学 2021-09-06 Li You , Yufei Huang , Di Zhang , Zheng Chang , Wenjin Wang , Xiqi Gao

This work proposes novel approaches that jointly design user equipment (UE) association and power control (PC) in a downlink user-centric cell-free massive multiple-input multiple-output (CFmMIMO) network, where each UE is only served by a…

The proposed distributed dynamic clustering algorithm enables to group agents based on their pre-selected feature states. The clusters are determined by comparing the distance of the agents' current feature states with average estimates of…

系统与控制 · 电气工程与系统科学 2024-12-20 Runfan Zhang , Branislav Hredzak

Clustering, as a technique for grouping nodes in geographical proximity together, in vehicular communication networks, is a key technique to enhance network robustness and scalability despite challenges such as mobility and routing. This…

系统与控制 · 电气工程与系统科学 2024-08-09 Maryam Hosseini , Gunes Karabulut Kurt

Contrary to conventional massive MIMO cellular configurations plagued by inter-cell interference, cell-free massive MIMO systems distribute network resources across the coverage area, enabling users to connect with multiple access points…

信号处理 · 电气工程与系统科学 2024-10-07 Giovanni Di Gennaro , Amedeo Buonanno , Gianmarco Romano , Stefano Buzzi , Francesco A. N Palmieri

This paper proposes a dynamic access point (AP) selection and pilot power allocation (DAPPA) framework for uplink cell-free massive multiple-input multiple-output (CFmMIMO) systems, aiming to mitigate inter-user interference and improve…

信号处理 · 电气工程与系统科学 2026-02-24 Saeed Mohammadzadeh , Rodrigo C. De Lamare , Kanapathippillai Cumanan , Hien Quoc Ngo

The introduction of device-to-device (D2D) into cellular networks poses many new challenges in the resource allocation design due to the co-channel interference caused by spectrum reuse and limited battery life of user equipments (UEs). In…

网络与互联网体系结构 · 计算机科学 2016-11-17 Zhenyu Zhou , Mianxiong Dong , Kaoru Ota , Jun Wu , Takuro Sato

This paper considers a cellular system with a full-duplex base station and half-duplex users. The base station can activate one user in uplink or downlink (half-duplex mode), or two different users one in each direction simultaneously…

信息论 · 计算机科学 2018-05-01 Shahram Shahsavari , David Ramirez , Elza Erkip

We consider an energy minimization problem for cooperative LTE networks. To reduce energy consumption, we investigate how to jointly optimize the transmit power and the association between cells and user equipments (UEs), by taking into…

信息论 · 计算机科学 2017-06-23 Lei You , Lei Lei , Di Yuan

This paper proposes an energy efficient resource allocation design algorithm for an intelligent reflecting surface (IRS)-assisted downlink ultra-reliable low-latency communication (URLLC) network. This setup features a multi-antenna base…

信号处理 · 电气工程与系统科学 2023-09-27 Jalal Jalali , Filip Lemic , Hina Tabassum , Rafael Berkvens , Jeroen Famaey

Many clustering schemes have been proposed for ad hoc networks. A systematic classification of these clustering schemes enables one to better understand and make improvements. In mobile ad hoc networks, the movement of the network nodes may…

分布式、并行与集群计算 · 计算机科学 2009-12-14 Ratish Agarwal , Dr. Mahesh Motwani

Downlink beamforming techniques with low signaling overhead are proposed for joint processing coordinated (JP) multi-point transmission. The objective is to maximize the weighted sum rate within joint transmission clusters. As the…

信息论 · 计算机科学 2017-05-16 Jarkko Kaleva , Antti Tölli , Markku Juntti , Randall Berry , Michael Honig
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