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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

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

In this letter, we study a rate-splitting multiple access (RSMA)-based intelligent reflecting surface (IRS)-aided multi-user multiple-input single-output (MISO) secure communication system with a potential eavesdropper (Eve). Aiming to…

Information Theory · Computer Science 2022-11-28 Ying Gao , Qingqing Wu , Wen Chen , Derrick Wing Kwan Ng

This letter is the second part of a three-part tutorial focusing on rate-splitting multiple access (RSMA) for 6G. As Part II of the tutorial, this letter addresses the interplay between RSMA and integrated radar sensing and communications…

Information Theory · Computer Science 2022-05-06 Longfei Yin , Yijie Mao , Onur Dizdar , Bruno Clerckx

This paper focuses on achieving optimal multi-user channel access in distributed networks using a reconfigurable intelligent surface (RIS). The network includes wireless channels with direct links between users and RIS links connecting…

Information Theory · Computer Science 2023-09-25 Zhou Zhang , Saman Atapattu , Yizhu Wang , Marco Di Renzo

Rate-splitting multiple access (RSMA) has emerged as a promising technique for efficient interference management in next-generation wireless networks. While most existing studies focus on downlink and single-cell designs, the modeling and…

Information Theory · Computer Science 2025-12-25 Xinyi Guo , Li You , Qiong Liu , Xiqi Gao , Xiang-Gen Xia

Satellite-terrestrial integrated networks (STINs) are promising architecture for providing global coverage. In STINs, full frequency reuse between a satellite and a terrestrial base station (BS) is encouraged for aggressive spectrum reuse,…

Information Theory · Computer Science 2024-08-21 Doseon Kim , Sungyoon Cho , Wonjae Shin , Jeonghun Park , Dong Ku Kim

This study explores the application of the rate-splitting multiple access (RSMA) technique, vital for interference mitigation in modern communication systems. It investigates the use of precoding methods in RSMA, especially in complex…

Information Theory · Computer Science 2024-12-20 Osman Nuri Irkicatal , Elif Tugce Ceran , Melda Yuksel

Rate-Splitting Multiple Access (RSMA) is an emerging flexible and powerful multiple access for downlink multiantenna networks. In this paper, we introduce the concept of RSMA into short-packet downlink communications. We design optimal…

Information Theory · Computer Science 2022-07-13 Yunnuo Xu , Yijie Mao , Onur Dizdar , Bruno Clerckx

This paper proposes a general optimization framework for rate splitting multiple access (RSMA) in beyond diagonal (BD) reconfigurable intelligent surface (RIS) assisted ultra-reliable low-latency communications (URLLC) systems. This…

Information Theory · Computer Science 2023-10-16 Mohammad Soleymani , Ignacio Santamaria , Eduard Jorswieck , Bruno Clerckx

Rate-Splitting Multiple Access (RSMA) is a promising strategy for ensuring robust transmission in multi-antenna wireless systems. In this paper, we investigate the performance of RSMA in a downlink Decode-and-Forward (DF) relay scenario…

Signal Processing · Electrical Eng. & Systems 2024-09-16 Ahmet Sacid Sümer , Mehmet Mert Şahin , Hüseyin Arslan

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

Rate splitting multiple access (RSMA) is regarded as a crucial and powerful physical layer (PHY) paradigm for next-generation communication systems. Particularly, users employ successive interference cancellation (SIC) to decode part of the…

Information Theory · Computer Science 2024-11-15 Cixiao Zhang , Size Peng , Yin Xu , Qingqing Wu , Xiaowu Ou , Xinghao Guo , Dazhi He , Wenjun Zhang

Rate Splitting Multiple Access (RSMA) has recently emerged as a promising technique to enhance the transmission rate for multiple access networks. Unlike conventional multiple access schemes, RSMA requires splitting and transmitting…

Information Theory · Computer Science 2022-04-01 Nguyen Quang Hieu , Dinh Thai Hoang , Dusit Niyato , Diep N. Nguyen , Dong In Kim , Abbas Jamalipour

Next generation wireless networks require more stringent performance levels. New technologies such as Reconfigurable intelligent surfaces (RISs) and rate-splitting multiple access (RSMA) are candidates for meeting some of the performance…

Networking and Internet Architecture · Computer Science 2024-04-11 Ibrahim Aboumahmoud , Ekram Hossain , \\Amine Mezghani

This paper investigates the sum spectral efficiency maximization problem in downlink multiuser multiple-input multiple-output (MIMO) systems with low-resolution quantizers at an access point (AP) and users. In particular, we consider…

Information Theory · Computer Science 2022-08-02 Seokjun Park , Jinseok Choi , Jeonghun Park , Wonjae Shin , Bruno Clerckx

Due to the low power consumption and low cost nature of transmissive reconfigurable intelligent surface (RIS),in this paper, we propose a downlink multi-user rate-splitting multiple access (RSMA) architecture based on the transmissive RIS…

Information Theory · Computer Science 2023-07-25 Bojiang Li , Wen Chen , Zhendong Li , Qingqing Wu , Nan Cheng , Changle Li , Linglong Dai

This paper proposes, for the first time, a hybrid multiple access framework that integrates the principles of rate-splitting (RS) and sparse code multiple access (SCMA) in an SISO downlink scenario. The proposed scheme, termed RS-SCMA,…

Signal Processing · Electrical Eng. & Systems 2026-01-29 Minerva Priyadarsini , Zilong Liu , Kuntal Deka , Sujit Kumar Sahoo , Sanjeev Sharma

The increased proliferation of connected devices requires a paradigm shift towards the development of innovative technologies for the next generation of wireless systems. One of the key challenges, however, is the spectrum scarcity, owing…

Signal Processing · Electrical Eng. & Systems 2020-07-28 Shimaa Naser , Lina Bariah , Wael Jaafar , Sami Muhaidat , Paschalis C. Sofotasios , Mahmoud Al-Qutayri , Octavia A. Dobre

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