English
Related papers

Related papers: Optimizing Multi-User Uplink Cooperative Rate-Spli…

200 papers

Due to its promising performance in a wide range of practical scenarios, Rate-Splitting (RS) has recently received significant attention in academia for the downlink of communication systems. In this letter, we propose and analyse a…

Information Theory · Computer Science 2020-01-08 Jian Zhang , Bruno Clerckx , Jianhua Ge , Yijie Mao

The combination of non-orthogonal multiple access (NOMA) and mobile edge computing (MEC) can significantly improve the spectrum efficiency beyond the fifth-generation network. In this paper, we mainly focus on energy-efficient resource…

Signal Processing · Electrical Eng. & Systems 2020-09-15 Fang Fang , Kaidi Wang , Zhiguo Ding , Victor C. M. Leung

The coupling of cell-free massive MIMO (CF-mMIMO) with Mobile Edge Computing (MEC) is investigated in this paper. A MEC-enabled CF-mMIMO architecture implementing a distributed user-centric approach both from the radio and the computational…

Information Theory · Computer Science 2023-11-30 Giovanni Interdonato , Stefano Buzzi

Non-orthogonal multiple access (NOMA) has been considered one of the most promising radio access techniques for next-generation cellular networks. In this paper, we study the joint user and power scheduling for downlink NOMA over fading…

Networking and Internet Architecture · Computer Science 2021-01-11 Do-Yup Kim , Hamid Jafarkhani , Jang-Won Lee

For a two user cooperative orthogonal frequency division multiple access (OFDMA) system with full channel state information (CSI), we obtain the optimal power allocation (PA) policies which maximize the rate region achievable by a channel…

Information Theory · Computer Science 2015-03-20 Sezi Bakım , Onur Kaya

A joint resource allocation (RA), user association (UA), and power control (PC) problem is addressed for proportional fairness maximization in a cooperative multiuser downlink small cell network with limited backhaul capacity, based on…

Networking and Internet Architecture · Computer Science 2018-08-14 Jonggyu Jang , Hyun Jong Yang , Hyekyung Jwa

An essential step for achieving multiplexing gain in MIMO downlink systems is to collect accurate channel state information (CSI) from the users. Traditionally, CSIs have to be collected before any data can be transmitted. Such a sequential…

Networking and Internet Architecture · Computer Science 2017-06-01 Zhenzhi Qian , Fei Wu , Zizhan Zheng , Kannan Srinivasan , Ness B. Shroff

This paper studies a wireless networked control system with multiple base stations (BSs) cooperatively coordinating the wireless control of a number of subsystems each consisting of a plant, a sensor, and an actuator. In this system, each…

Information Theory · Computer Science 2025-01-22 Zhilin Liu , Yiyang Li , Huijun Xing , Ye Zhang , Jie Xu , Shuguang Cui

In this paper, we study the resource allocation for an orthogonal frequency division multiple access (OFDMA) radio system employing a full-duplex base station for serving multiple half-duplex downlink and uplink users simultaneously. The…

Information Theory · Computer Science 2017-05-08 Yan Sun , Derrick Wing Kwan Ng , Robert Schober

This paper studies joint uplink (UL) and downlink (DL) resource allocation in user-centric orthogonal frequency division multiple access (OFDMA) cloud radio access network (CRAN), where the users select the distributed remote radio heads…

Information Theory · Computer Science 2019-06-21 Zehong Lin , Yuan Liu

In this paper, spectrum-sharing technology is integrated into cellular systems to improve spectrum efficiency. Macrocell users are primary users (PUs) while those within local cells, e.g., femtocell users, or desiring cost-effective…

Information Theory · Computer Science 2016-01-12 Minghua Xia , Sonia Aïssa

This paper introduces an access point-user (AP-UE) association strategy combined with pilot power allocation to mitigate multiuser interference and enhance spectral efficiency (SE) in clustered cell-free massive MIMO (CCF-mMIMO) networks.…

Information Theory · Computer Science 2025-07-08 S. Mohammadzadeh , S. Mashdour , R. C. de Lamare , K. Cumanan , C. Li

We consider a downlink multicast and unicast superposition transmission in multi-layer Multiple-Input Multiple-Output (MIMO) Orthogonal Frequency Division Multiple Access (OFDMA) systems when only the statistical channel state information…

Information Theory · Computer Science 2023-10-03 Yong Jin Daniel Kim , David Vargas

We consider the cell-free massive multiple-input multiple-output (MIMO) downlink, where a very large number of distributed multiple-antenna access points (APs) serve many single-antenna users in the same time-frequency resource. A simple…

Information Theory · Computer Science 2017-11-27 Hien Quoc Ngo , Le-Nam Tran , Trung Q. Duong , Michail Matthaiou , Erik G. Larsson

In this paper, we introduce a novel approach for power allocation in cellular networks. In our model, we use sigmoidal-like utility functions to represent different users' modulation schemes. Each utility function is a representation of the…

Networking and Internet Architecture · Computer Science 2015-10-07 Ahmed Abdelhadi , Awais Khawar , T. Charles Clancy

This paper investigates the problem of resource allocation for joint communication and radar sensing system on rate-splitting multiple access (RSMA) based unmanned aerial vehicle (UAV) system. UAV simultaneously communicates with multiple…

Information Theory · Computer Science 2021-07-13 Yuwei Li , Wanli Ni , Hui Tian , Meihui Hua , Shaoshuai Fan

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…

Information Theory · Computer Science 2025-12-23 Jun Qian , Ross Murch , Khaled B. Letaief

This paper considers weighted sum rate maximization constrained with a per base station (BS) antenna power problem for multiuser multiple-input multiple-output (MIMO) systems. For this problem, we propose new downlink-uplink duality based…

Optimization and Control · Mathematics 2013-11-26 Tadilo Endeshaw Bogale , Luc Vandendorpe

This paper addresses the problem of resource allocation for systems in which a primary and a secondary link share the available spectrum by an underlay or overlay approach. After observing that such a scenario models both cognitive radio…

Information Theory · Computer Science 2016-12-21 Alessio Zappone , Bho Matthiesen , Eduard A. Jorswieck

In this paper, the ergodic sum-rate of a fading cognitive multiple access channel (C-MAC) is studied, where a secondary network (SN) with multiple secondary users (SUs) transmitting to a secondary base station (SBS) shares the spectrum band…

Information Theory · Computer Science 2014-03-04 Xin Kang , Hon Fah Chong , Yeow-Khiang Chia , Sumei Sun