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In this letter, we investigate Rate-Splitting Multiple Access (RSMA) for an uplink communication system with finite blocklength. Considering a two-user Single-Input Single-Output (SISO) Multiple Access Channel (MAC), we study the impact of…

Information Theory · Computer Science 2022-12-12 Jiawei Xu , Onur Dizdar , Bruno Clerckx

Rate-Splitting Multiple Access (RSMA) has emerged as a novel multiple access technique that enlarges the achievable rate region of Multiple-Input Multiple-Output (MIMO) broadcast channels with linear precoding. In this work, we jointly…

Information Theory · Computer Science 2025-03-11 Sibo Zhang , Bruno Clerckx , David Vargas , Oliver Haffenden , Andrew Murphy

This paper investigates a downlink multiuser multiple-input single-output system that integrates rate-splitting multiple access (RSMA) with a stacked intelligent metasurface (SIM) to enable wave-domain beamforming. Unlike conventional…

Systems and Control · Electrical Eng. & Systems 2025-11-17 Abdullah Quran , Shimaa Naser , Maryam Tariq , Omar Alhussein , Sami Muhaidat

This paper considers the Sum-Rate (SR) maximization problem in downlink MU-MISO systems under imperfect Channel State Information at the Transmitter (CSIT). Contrary to existing works, we consider a rather unorthodox transmission scheme. In…

Information Theory · Computer Science 2016-08-25 Hamdi Joudeh , Bruno Clerckx

In this paper, a Rate-Splitting Multiple Access (RSMA) scheme is proposed to assist a Mobile Edge Computing (MEC) system where local computation tasks from two users are offloaded to the MEC server, facilitated by uplink RSMA for…

Information Theory · Computer Science 2025-02-10 Jiawei Xu , Yumeng Zhang , Yunnuo Xu , Bruno Clerckx

Rate-Splitting Multiple Access (RSMA) has been recognized as a promising multiple access technique for future wireless communication systems. Recent research demonstrates that RSMA can maintain its superiority without relying on Successive…

Information Theory · Computer Science 2025-07-16 Sibo Zhang , Bruno Clerckx , David Vargas

We introduce an energy-efficient downlink rate splitting multiple access (RSMA) scheme, employing a simple matched filter (MF) for precoding. We consider a transmitter equipped with multiple antennas, serving several single-antenna users at…

Information Theory · Computer Science 2024-03-08 Hui Zhao , Dirk Slock

Rate-Splitting Multiple Access (RSMA) is a flexible and robust multiple access scheme for downlink multi-antenna wireless networks. RSMA relies on Rate-Splitting (RS) at the transmitter and Successive Interference Cancellation (SIC) at the…

Information Theory · Computer Science 2021-08-13 Onur Dizdar , Yijie Mao , Yunnuo Xu , Peiying Zhu , Bruno Clerckx

This work focuses on the promising Rate-Splitting Multiple Access (RSMA) and its beamforming design problem to achieve max-min fairness (MMF) among multiple co-channel multicast groups with imperfect channel state information at the…

Signal Processing · Electrical Eng. & Systems 2020-11-11 Longfei Yin , Bruno Clerckx

Considering a two-user multi-antenna Broadcast Channel, this paper shows that linearly precoded Rate-Splitting (RS) with Successive Interference Cancellation (SIC) receivers is a flexible framework for non-orthogonal transmission that…

Information Theory · Computer Science 2019-06-12 Bruno Clerckx , Yijie Mao , Robert Schober , H. Vincent Poor

Near-field integrated sensing and communication (ISAC) leverages distance-dependent channel variations for joint distance and angle estimation. However, full-digital architectures have prohibitive hardware costs, making hybrid…

Information Theory · Computer Science 2025-12-05 Jiasi Zhou , Chintha Tellambura , Geoffrey Ye Li

Rate splitting multiple access (RSMA) has firmly established itself as a powerful methodology for multiple access, interference management, and multi-user strategy for next-generation communication systems. In this paper, we propose a novel…

Signal Processing · Electrical Eng. & Systems 2025-04-17 Sawaira Rafaqat Ali , Shaima Abidrabbu , H. M. Furqan , Hüseyin Arslan

Rate splitting multiple access (RSMA) and non-orthogonal multiple access (NOMA) are the key enabling multiple access techniques to enable massive connectivity. However, it is unclear whether RSMA would consistently outperform NOMA from a…

Information Theory · Computer Science 2023-06-16 Mohammad Amin Saeidi , Hina Tabassum

In this paper, we investigate rate splitting multiple access (RSMA) aided mobile edge computing (MEC) in a cognitive radio network. We propose a RSMA scheme that enables the secondary user to offload tasks to the MEC server utilizing…

Information Theory · Computer Science 2022-04-14 Hongwu Liu , Yinghui Ye , Zhiquan Bai , Kyeong Jin Kim , Theodoros A. Tsiftsis

In this paper, the problem of sum-rate maximization for an active reconfigurable intelligent surface (RIS) assisted downlink rate-splitting multiple access (RSMA) transmission system is studied. In the considered model, the active RIS is…

Information Theory · Computer Science 2023-01-31 Xinhao Li , Tao Wang , Haonan Tong , Zhaohui Yang , Yijie Mao , Changchuan Yin

Rate Splitting Multiple Access (RSMA) is a code division multi-access technique which can achieve any base in the multi-access capacity polymatroid without high coding complexity or synchronization among the transmitting users. In this…

Information Theory · Computer Science 2016-08-15 Xiaomao Mao , Huifang Chen , Peiliang Qiu

In this paper, we consider the precoder design for an underloaded or critically loaded downlink multi-user multiple-input multiple-output (MIMO) communication system. We propose novel precoding and decoding schemes which enhance system…

Information Theory · Computer Science 2022-05-09 Aravindh Krishnamoorthy , Robert Schober

Energy efficiency (EE) problem has become an important and major issue in satellite communications. In this paper, we study the beamforming design strategy to maximize the EE of rate-splitting multiple access (RSMA) for the multibeam…

Information Theory · Computer Science 2023-03-22 Jinyuan Liu , Yong Liang Guan , Yao Ge , Longfei Yin , Bruno Clerckx

In order to manage the increasing interference between radar and communication systems, joint radar and communication (RadCom) systems have attracted increased attention in recent years, with the studies so far considering the assumption of…

Signal Processing · Electrical Eng. & Systems 2021-05-04 Rafael Cerna-Loli , Onur Dizdar , Bruno Clerckx

This letter presents a flexible rate-splitting multiple access (RSMA) framework for near-field (NF) integrated sensing and communications (ISAC). The spatial beams configured to meet the communication rate requirements of NF users are…

Information Theory · Computer Science 2024-12-03 Jiasi Zhou , Cong Zhou , Cheng Zeng , Chintha Tellambura