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相关论文: A Modified CSMA/CA Protocol for OFDM Underwater Ne…

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As 6G networks demand massive connectivity and stronger interference control, rate-splitting multiple access (RSMA) is attractive because it superposes a common stream and user-private streams and remains effective under imperfect CSIT and…

信号处理 · 电气工程与系统科学 2026-04-15 Jinyuan Liu , Yong Liang Guan , Tuo Wu , Kai-Kit Wong , Bruno Clerckx

This paper investigates a novel fluid antenna multiple access (FAMA)-assisted wireless powered communication network (WPCN), in which a hybrid access point (HAP) equipped with multiple fixed position antennas (FPAs) provides integrated data…

信息论 · 计算机科学 2025-09-29 Xiao Lin , Yizhe Zhao , Halvin Yang , Jie Hu

Pinching-antenna (PA) systems route millimeter wave (mmWave) signals through a leaky waveguide and radiate them at "pinch" apertures, offering low-cost line-of-sight (LoS) coverage. However, when multiple PAs serve multiple users…

信号处理 · 电气工程与系统科学 2025-05-27 Thrassos K. Oikonomou , Sotiris A. Tegos , Panagiotis D. Diamantoulakis , Yuanwei Liu , George K. Karagiannidis

This paper presents a problem of queuing theoretic performance modeling and analysis of Orthogonal Frequency Division Multiple Access (OFDMA) under broad-band wireless networks. We consider a single-cell WiMAX environment in which the base…

网络与互联网体系结构 · 计算机科学 2013-04-09 Abdelali El Bouchti , Said El Kafhali , Abdelkrim Haqiq

Though the concept of non-orthogonal multiple access (NOMA) was proposed several years ago, the performance of uplink NOMA has only been verified in theory, but not in practice. This paper presents an over-the-air implementation of a uplink…

网络与互联网体系结构 · 计算机科学 2018-01-18 Samith Abeywickrama , Lei Liu , Yuhao Chi , Chau Yuen

This paper investigates a two-timescale uplink transmission framework for a fluid antenna-enabled multiuser multi-input multi-output system (MIMO-FAS). Antenna positions are optimized based on statistical channel state information (CSI),…

信号处理 · 电气工程与系统科学 2025-03-04 Linyue Hu , Luchu Li , Cunhua Pan , Hong Ren

When an unmanned aerial vehicle (UAV) network is utilized as an aerial small base station (BS), like a relay deployed far away from macro BSs, existing multicast methods based on acknowledgement (ACK) feedback and retransmissions may…

系统与控制 · 电气工程与系统科学 2021-11-05 Hao Song , Lingjia Liu , Bodong Shang , Scott Pudlewski , Elizabeth Serena Bentley

This book chapter introduces the use of Continuous Time Markov Networks (CTMN) to analytically capture the operation of Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) networks. It is of tutorial nature, and it aims to be…

网络与互联网体系结构 · 计算机科学 2014-05-15 B. Bellalta , A. Zocca , C. Cano , A. Checco , J. Barcelo , A. Vinel

Channel models are crucial for theoretical analysis, performance evaluation, and deployment of wireless communication systems. Traditional channel sounding systems are insufficient for handling the dynamic changes of channels in the…

信号处理 · 电气工程与系统科学 2025-09-23 Yu Zhou , Chao Zou , Nanhao Zhou , Yanqun Tang , Xiaoying Zhang , Haoran Yin , Xiaoran Liu , Ruisi He , Pan Tang , Weijie Yuan , Yong Zeng

The colossal evolution of wireless communication technologies over the past few years has driven increased interest in its integration in a variety of less-explored environments, such as the underwater medium. In this magazine paper, we…

网络与互联网体系结构 · 计算机科学 2023-07-25 Waqas Aman , Flavio Giorgi , Giulio Attenni , Saif Al-Kuwari , Elmehdi Illi , Marwa Qaraqe , Gaia Maselli , Roberto Di Pietro

Integrated Sensing and Communications (ISAC) surpasses the conventional frequency-division sensing and communications (FDSAC) in terms of spectrum, energy, and hardware efficiency, with potential for greater enhancement through integration…

信息论 · 计算机科学 2024-07-16 Boqun Zhao , Chongjun Ouyang , Xingqi Zhang , Yuanwei Liu

We present a unified receiver processing framework for communication over delay-scale (DS)-spread channels that arise in underwater acoustic (UWA) communications that addresses both channel estimation (CE) and data detection for different…

信号处理 · 电气工程与系统科学 2025-09-01 Niladri Halder , Chandra R. Murthy

Underwater wireless optical communication is one of the critical technologies for buoy-based high-speed cross-sea surface communication, where the communication nodes are vertically deployed. Due to the vertically inhomogeneous nature of…

信息论 · 计算机科学 2020-08-10 Yi Lou , Julian Cheng , Donghu Nie , Gang Qiao

Traditional physical (PHY) layer protocols contain chains of signal processing blocks that have been mathematically optimized to transmit information bits efficiently over noisy channels. Unfortunately, this same optimality encourages…

信号处理 · 电气工程与系统科学 2019-08-30 Adam Anderson , Steven R. Young , F. Kyle Reed , Jason M. Vann

We analytically study a carrier sense multiple access (CSMA)-based network. In the network, the nodes have their own average throughput demands for transmission to a common base station. The CSMA is based on the request-to-send…

计算机科学与博弈论 · 计算机科学 2015-03-13 Fu-Te Hsu , Hsuan-Jung Su

Different cross layer design for mobile adhoc network focuses on different optimization purpose, different Quality of Service (QoS) metric and the functions like delay, priority handling, security, etc. Existing cross layer designs provide…

网络与互联网体系结构 · 计算机科学 2009-10-16 R. Venkatachalam , A. Krishnan

Distributed multichannel active noise control (DMCANC) systems assign the high computational load of conventional centralized algorithms across multiple processing nodes, leveraging inter-node communication to collaboratively suppress…

信号处理 · 电气工程与系统科学 2025-10-02 Junwei Ji , Dongyuan Shi , Zhengding Luo , Boxiang Wang , Ziyi Yang , Haowen Li , Woon-Seng Gan

This paper presents a novel multi-stream downlink communication system that utilizes a transmissive reconfigurable intelligent surface (RIS) transceiver. Specifically, we elaborate the downlink communication scheme using time-modulated…

信号处理 · 电气工程与系统科学 2024-10-07 Zhendong Li , Wen Chen , Haoran Qin , Qingqing Wu , Xusheng Zhu , Ziheng Zhang , Jun Li

The problem of underwater acoustic (UWA) channel estimation is the non-uniform sparse representation that may increase the algorithm complexity and the required time. A mathematical framework utilizing l21 constraint with two-dimensional…

最优化与控制 · 数学 2021-08-31 Amer Aljanabi , Mohanad Abd Shehab , Osama Alluhaibi , Qasim Zeeshan Ahmed , Pavlos Lazaridis

This letter studies a wireless system consisting of distributed ground terminals (GTs) communicating with an unmanned aerial vehicle (UAV) that serves as a mobile base station (BS). The UAV flies cyclically above the GTs at a fixed…

信息论 · 计算机科学 2018-05-22 Jiangbin Lyu , Yong Zeng , Rui Zhang