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This paper develops a sum-power minimized resource allocation (RA) algorithm subject to a sum-rate constraint for cooperative orthogonal frequency division modulation (OFDM) transmission with subcarrier-pair based opportunistic…

信息论 · 计算机科学 2016-11-15 Tao Wang , Yong Fang , Luc Vandendorpe

This paper presents an optimization-based behavioral model for mixers driven by multi-tone local oscillator (LO) signals, considered specifically for frequency comb orthogonal frequency-division multiplexing radar applications. Unlike…

Several types of numerical and combinatorial optimization algorithms have been used as useful tools to minimize functional forms. Generally, when those forms are non-linear or occur in problems without a specific optimization method,…

化学物理 · 物理学 2007-05-23 Luiz Fernando Roncaratti , Ricardo Gargano , Geraldo Magela e Silva

In this paper, we propose two low-complexity peak to average power ratio(PAPR) reduction algorithms for orthogonal frequency division multiplexing(OFDM) signals. The main content is as follows: First, a non-convex optimization model is…

信号处理 · 电气工程与系统科学 2025-09-18 Hao Su , Jiangtao Wang , Yongchao Wang

One of the main limitations of utilizing optimal wavefront shaping in imaging and authentication applications is the slow speed of the optimization algorithms currently being used. To address this problem we develop a micro-genetic…

光学 · 物理学 2015-03-03 Benjamin R. Anderson , Patrick Price , Ray Gunawidjaja , Hergen Eilers

Orthogonal time frequency space (OTFS) modulation has been proposed recently as a new waveform in the context of doubly-selective multi-path channels. This article proposes a novel pilot design that improves OTFS spectral efficiency (SE)…

信号处理 · 电气工程与系统科学 2025-03-20 Davide Bergamasco , Federico Clazzer , Andrea Munari , Paolo Casari

In this work we consider a multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system, which senses multiple spatial directions and serves multiple users. Upon resorting to an orthogonal frequency division…

信号处理 · 电气工程与系统科学 2022-03-09 Jeremy Johnston , Luca Venturino , Emanuele Grossi , Marco Lops , Xiaodong Wang

Traditional mathematical programming solvers require long computational times to solve constrained minimization problems of complex and large-scale physical systems. Therefore, these problems are often transformed into unconstrained ones,…

最优化与控制 · 数学 2024-05-06 Ksenija Stepanovic , Wendelin Böhmer , Mathijs de Weerdt

Conventional orthogonal frequency division multiplexing (OFDM) waveform design in integrated sensing and communications (ISAC) systems usually selects the channels with high-frequency responses to transmit communication data, which does not…

信号处理 · 电气工程与系统科学 2023-12-27 Qinghui Lu , Zhen Du , Zenghui Zhang

One of the most important multi-carrier transmission techniques used in the latest wireless communication arena is known as Orthogonal Frequency Division Multiplexing (OFDM). It has several characteristics such as providing greater immunity…

网络与互联网体系结构 · 计算机科学 2014-06-13 Md. Munjure Mowla , Liton Chandra Paul , Md. Rabiul Hasan

Circularly pulse-shaped orthogonal frequency division multiplexing (CPS-OFDM) is one of the most promising 5G waveforms that addresses two physical layer signal requirements of low out-of-subband emission (OSBE) and low peak-to-average…

信息论 · 计算机科学 2024-10-30 Yenming Huang , Rueibin Yang , Borching Su

Genetic Algorithms (GAs) are used to solve search and optimization problems in which an optimal solution can be found using an iterative process with probabilistic and non-deterministic transitions. However, depending on the problem's…

分布式、并行与集群计算 · 计算机科学 2019-01-23 Matheus F. Torquato , Marcelo A. C. Fernandes

An enhanced framework for peak-to-average power ratio ($\mathsf{PAPR}$) reduction and waveform design for Multiple-Input-Multiple-Output ($\mathsf{MIMO}$) orthogonal frequency-division multiplexing ($\mathsf{OFDM}$) systems, based on a…

信号处理 · 电气工程与系统科学 2023-01-13 Yara Huleihel , Haim H. Permuter

This paper presents the design a Proportional-Integral-Derivative (PID) controller with optimized parameters for a two-degree-of-freedom robotic arm. A genetic algorithm (GA) is proposed to optimize the controller parameters, addressing the…

系统与控制 · 电气工程与系统科学 2025-01-10 Vu Ngoc Son , Pham Van Cuong , Nguyen Duy Minh , Phi Hoang Nha

In this paper, we investigate a distributed multi-input multi-output and orthogonal frequency division multiplexing (MIMO-OFDM) dual-function radar-communication (DFRC) system, which enables simultaneous communication and sensing in…

信号处理 · 电气工程与系统科学 2025-03-17 Chen Zhong , Xufeng Zhou , Lan Tang , Mengting Lou

An intelligent reflecting surface (IRS) consists of passive reflective elements capable of altering impinging waveforms. The IRS-aided radar systems have recently been shown to improve detection and estimation performance by exploiting the…

信号处理 · 电气工程与系统科学 2023-03-27 Zahra Esmaeilbeig , Arian Eamaz , Kumar Vijay Mishra , Mojtaba Soltanalian

This paper proposes new scheme for efficient rate allocation in conjunction with reducing peak-to-average power ratio (PAPR) in orthogonal frequency-division multiplexing (OFDM) systems. Modification of the set partitioning in hierarchical…

网络与互联网体系结构 · 计算机科学 2010-06-07 Usama S. Mohammed , H. A. Hamada

This paper presents an automated antenna design and optimization framework employing multi-objective genetic algorithms (MOGAs) to investigate various evolutionary optimization approaches, with a primary emphasis on multi-band frequency…

神经与进化计算 · 计算机科学 2026-01-27 Moahmed Hamza Boulaich , Said Ohamouddou , Mohammed Ali Ennasar , Abdelatif El Afia

We utilize genetic algorithms to find optimal dynamical decoupling (DD) sequences for a single-qubit system subjected to a general decoherence model under a variety of control pulse conditions. We focus on the case of sequences with equal…

量子物理 · 物理学 2013-11-13 Gregory Quiroz , Daniel A. Lidar

We consider the peak-to-average power ratio (PAPR) reduction challenge of orthogonal frequency division multiplexing (OFDM) systems utilizing tone reservation (TR) under a sensing-enabling constraint, such that the signals placed in the…

信号处理 · 电气工程与系统科学 2024-09-25 Getuar Rexhepi , Kuranage Roche Rayan Ranasinghe , Giuseppe Thadeu Freitas de Abreu , David González G