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The cellular Internet-of-Things has resulted in the deployment of millions of machine-type communication (MTC) devices. These massive number of devices must communicate with a single gNodeB (gNB) via the random access channel (RACH)…

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) is a multiple access technique generalizing conventional techniques, such as, space-division multiple access (SDMA), non-orthogonal multiple access (NOMA), and physical layer multi-casting, which aims…

Information Theory · Computer Science 2023-09-26 Mehmet Mert Sahin , Onur Dizdar , Bruno Clerckx , Huseyin Arslan

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

Rate-Splitting Multiple Access (RSMA) has been recognized as a promising multiple access technique. We propose a novel architecture for downlink RSMA, namely Codeword-Segmentation RSMA (CS-RSMA). Different from conventional RSMA which…

Information Theory · Computer Science 2025-06-23 Sibo Zhang , Bruno Clerckx , David Vargas

A novel rate splitting space division multiple access (SDMA) scheme based on grouped code index modulation (GrCIM) is proposed for the sixth generation (6G) downlink transmission. The proposed RSMA-GrCIM scheme transmits information to…

Information Theory · Computer Science 2021-03-02 Wenchao Zhai , Yishan Wu , Jun Zhao , Huimei Han

Future wireless networks, in particular, 5G and beyond, are anticipated to deploy dense Low Earth Orbit (LEO) satellites to provide global coverage and broadband connectivity. However, the limited frequency band and the coexistence of…

Information Theory · Computer Science 2024-05-03 Yunnuo Xu , Longfei Yin , Yijie Mao , Wonjae Shin , Bruno Clerckx

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

Next-generation wireless networks are projected to empower a broad range of Internet-of-things (IoT) applications and services with extreme data rates, posing new challenges in delivering large-scale connectivity at a low cost to current…

Information Theory · Computer Science 2024-06-05 Thai-Hoc Vu , Daniel Benevides da Costa , Bao Vo Nguyen Quoc , Sunghwan Kim

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

Rate-Splitting Multiple Access (RSMA) is a key enabling technique for sixth-generation (6G) wireless systems due to its powerful interference management, and Reconfigurable Intelligent Surface (RIS) improves communication performance by…

Information Theory · Computer Science 2026-03-11 Mingyu Hu , Nan Liu , Wei Kang

The proliferation of connected devices and emergence of internet-of-everything represent a major challenge for broadband wireless networks. This requires a paradigm shift towards the development of innovative technologies for next…

Information Theory · Computer Science 2020-03-06 Shimaa Naser , Lina Bariah , Wael Jaafar , Sami Muhaidat , Paschalis C. Sofotasios , Mahmoud Al-Qutayri , Octavia A. Dobre

An integrated sensing and backscatter communication (ISABC) system is introduced herein. This system features a full-duplex (FD) base station (BS) that seamlessly merges sensing with backscatter communication and supports multiple users.…

Signal Processing · Electrical Eng. & Systems 2025-01-30 Diluka Galappaththige , Shayan Zargari , Chintha Tellambura , Geoffrey Ye Li

In this letter, we design a downlink multi-user communication framework based on Rate-Splitting Multiple Access (RSMA) for semantic-aware networks. First, we formulate an optimization problem to obtain the optimal user scheduling,…

Information Theory · Computer Science 2024-02-27 Onur Dizdar , Stephen Wang

Rate-Splitting multiple access (RSMA) has emerged as a key enabler in improving the performance of the beyond fifth-generation (5G) cellular networks. The existing literature has typically considered the sum rate of the users to evaluate…

Signal Processing · Electrical Eng. & Systems 2022-12-23 Garima Chopra , Akhileswar Chowdary , Abhinav Kumar , Marwa Chafii

Cloud radio access networks (C-RAN) enable a network platform for beyond the fifth generation of communication networks (B5G), which incorporates the advances in cloud computing technologies to modern radio access networks. Recently, rate…

Information Theory · Computer Science 2020-11-03 Alaa Alameer Ahmad , Yijie Mao , Aydin Sezgin , Bruno Clerckx

Future 5G communication systems require more demanding performances than the existing cellular communication systems, e.g., 10 to 100 Mbps user data rate and much larger cellular spectrum efficiency. The well-used multiple access methods…

Signal Processing · Electrical Eng. & Systems 2020-02-04 Shin-Yuan Wang , Wei-Han Hsiao , Kang-Lun Chiu , Chia-Chi Huang

Rate-Splitting Multiple Access (RSMA) has recently appeared as a powerful and robust multiple access and interference management strategy for downlink Multi-user (MU) multi-antenna communications. In this work, we study the precoder design…

Information Theory · Computer Science 2021-05-18 Anup Mishra , Yijie Mao , Onur Dizdar , Bruno Clerckx

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

A canonical use case of Integrated Sensing and Communications (ISAC) in multiple-input multiple-output (MIMO) systems involves a multi-antenna transmitter communicating with $K$ users and sensing targets in its vicinity. For this setup,…

Signal Processing · Electrical Eng. & Systems 2025-12-12 Xinze Lyu , Sundar Aditya , Bruno Clerckx