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This paper considers the weighted sum rate (WSR) maximized resource allocation (RA) constrained by a system sum power in an orthogonal frequency division multiple access (OFDMA) downlink transmission system assisted by multiple…

信息论 · 计算机科学 2015-05-28 Tao Wang , Luc Vandendorpe

Symbol-level precoding (SLP) is a promising solution for addressing the inherent interference problem in dual-functional radar-communication (DFRC) signal designs. This paper considers an SLP-DFRC signal design problem which optimizes the…

信号处理 · 电气工程与系统科学 2025-04-22 Ly V. Nguyen , Rang Liu , Nhan Thanh Nguyen , Markku Juntti , Björn Ottersten , A. Lee Swindlehurst

Random linear network coding (RLNC) is asymptotically throughput optimal in the wireless broadcast of a block of packets from a sender to a set of receivers, but suffers from heavy computational load and packet decoding delay. To mitigate…

信息论 · 计算机科学 2015-06-04 Mingchao Yu , Parastoo Sadeghi , Alex Sprintson

Scalar Quantize & Forward (QF) schemes are studied for the Two-Way Relay Channel. Different QF approaches are compared in terms of rates as well as relay and decoder complexity. A coding scheme not requiring Slepian-Wolf coding at the relay…

信息论 · 计算机科学 2013-01-29 Michael Heindlmaier , Onurcan Iscan , Christopher Rosanka

The cloud radio access network (C-RAN) has become the foundational structure for various emerging communication paradigms, leveraging the flexible deployment of distributed access points (APs) and centralized task processing. In this paper,…

信息论 · 计算机科学 2023-11-17 Chang Wu , Hancheng Lu , Yuang Chen , Langtian Qin

In this paper, we propose a new subcarrier index modulation scheme for orthogonal frequency division multiplexing (OFDM), which incorporates the Reed-Solomon (RS) encoding in a visible light communication (VLC) system. In this scheme, the…

信息论 · 计算机科学 2021-09-27 Nima Taherkhani , Kamran Kiasaleh

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…

信息论 · 计算机科学 2023-01-31 Xinhao Li , Tao Wang , Haonan Tong , Zhaohui Yang , Yijie Mao , Changchuan Yin

The sum-rate performance of simultaneous transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) assisted full-duplex (FD) communication systems is investigated. The reflection and transmission coefficients of STAR-RIS…

This paper studies a downlink multi-user multiple-input multiple-output (MU-MIMO) system, where the precoding matrix is computed at a baseband unit (BBU) and then transmitted to the remote antenna array over a limited-capacity digital…

信号处理 · 电气工程与系统科学 2026-03-02 Yasaman Khorsandmanesh , Alva Kosasih , Emil Björnson , Joakim Jaldén

This paper considers the downlink of a cache-enabled fog radio access network (F-RAN) with limited fronthaul capacity, where user association (UA), data delivery rate (DDR) and signal precoding are jointly optimized. We formulate a…

信息论 · 计算机科学 2017-07-03 Tung T. Vu , Duy T. Ngo , Lawrence Ong , Salman Durrani , Richard H. Middleton

Non-orthogonal multiple access (NOMA)-aided cell-free massive multiple-input multiple-output (CFmMIMO) has been considered as a promising technology to fulfill strict quality of service requirements for ultra-reliable low-latency…

信息论 · 计算机科学 2024-03-27 Baolin Chong , Hancheng Lu , Yuang Chen , Langtian Qin , Fengqian Guo

In this paper, we address the power allocation problem for a decode and forward (DF) relay system, where a massive multiple-input-multiple-output (mMIMO) multi-carrier (MC) base station (BS) node communicates with a MC single antenna node…

信息论 · 计算机科学 2019-08-01 Vimal Radhakrishnan , Omid Taghizadeh , Rudolf Mathar

This paper proposes a rate-splitting multiple access (RSMA) transmission scheme to maximize the minimum achievable rate among ground users for emergency communications in post-disaster scenarios with obstacles, with which the optimal…

信息论 · 计算机科学 2025-09-30 Qingyang Wang , Zhuohui Yao , Wenchi Cheng , Xiao Zheng

This paper evaluates the performance of rate splitting (RS), a robust interference management scheme, in an optical wireless communication (OWC) network that uses infrared lasers referred to as vertical-cavity surface-emitting lasers…

信号处理 · 电气工程与系统科学 2023-04-07 Khulood D. Alazwary , Ahmad Adnan Qidan , T. E. H. El-Gorashi , Jaafar M. H. Elmirghani

A full-duplex (FD) multiple antenna access point (AP) communicating with single antenna half-duplex (HD) spatially random users to support simultaneous uplink (UL)/downlink (DL) transmissions is investigated. Since FD nodes are inherently…

信息论 · 计算机科学 2016-11-18 Mohammadali Mohammadi , Himal A. Suraweera , Yun Cao , Ioannis Krikidis , Chintha Tellambura

We consider the optimization problem of minimizing the sum-of-nonconvex function, i.e., a convex function that is the average of nonconvex components. The existing stochastic algorithms for such a problem only focus on a single machine and…

最优化与控制 · 数学 2024-02-06 Zhuanghua Liu , Bryan Kian Hsiang Low

In this paper, we consider a distributed remote source coding problem, where a sequence of observations of source vectors is available at the encoder. The problem is to specify the optimal rate for encoding the observations subject to a…

信息论 · 计算机科学 2014-06-05 Adel Zahedi , Jan Ostergaard , Soren Holdt Jensen , Patrick Naylor , Soren Bech

We optimize the throughput of a single cell multiuser orthogonal frequency division multiplexing system with proportional data rate fairness among the users. The concept is to support mobile users with different levels of service. The…

信息论 · 计算机科学 2016-04-08 Mirza Golam Kibria , Shan Lin

The present work focuses on the forward link of a broadband multibeam satellite system that aggressively reuses the user link frequency resources. Two fundamental practical challenges, namely the need to frame multiple users per…

信息论 · 计算机科学 2016-11-17 Dimitrios Christopoulos , Symeon Chatzinotas , Bjorn Ottersten

In this paper, we aim to achieve energy efficient design with minimum hardware requirement for hybrid precoding, which enables a large number of antennas with minimal number of RF chains, and sub-arrayed multiple-input multiple-output…

信号处理 · 电气工程与系统科学 2021-04-19 Aryan Kaushik , Christos Masouros , Fan Liu