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The use of low-resolution analog-to-digital converters (ADCs) can significantly reduce power consumption and hardware cost. However, their resulting severe nonlinear distortion makes reliable data transmission challenging. For orthogonal…

信息论 · 计算机科学 2019-01-31 Hanqing Wang , Wan-Ting Shih , Chao-Kai Wen , Shi Jin

Mixed-numerology transmission is proposed to support a variety of communication scenarios with diverse requirements. However, as the orthogonal frequency division multiplexing (OFDM) remains as the basic waveform, the peak-to average power…

信号处理 · 电气工程与系统科学 2019-11-06 Xiaoran Liu , Xiaoying Zhang , Lei Zhang , Pei Xiao , Jibo Wei , Haijun Zhang , Victor C. M. Leung

Orthogonal Frequency Division Multiplexing (OFDM) systems have been widely used as a communication system. In OFDM systems, there are two main problems. One of them is that OFDM signals have high Peak-to-Average Power Ratio (PAPR). The…

信息论 · 计算机科学 2017-11-21 Hirofumi Tsuda , Ken Umeno

In this paper, an incremental selective decode-and-forward (ISDF) relay strategy is proposed for power line communication (PLC) systems to improve the spectral efficiency. Traditional decode-and-forward (DF) relaying employs two time slots…

信号处理 · 电气工程与系统科学 2018-03-05 A. Dubey , C. Kundu , T. M. N. Ngatched , O. A. Dobre , R. K. Mallik

In this paper, we explore a dual-functional radar-communication (DFRC) system for achieving integrated sensing and communications (ISAC). The technique of orthogonal frequency division multiplexing (OFDM) is leveraged to overcome the…

信号处理 · 电气工程与系统科学 2021-09-28 Xiaoyan Hu , Christos Masouros , Fan Liu , Ronald Nissel

Visible light communications (VLC) have recently attracted a growing interest and can be a potential solution to realize indoor wireless communication with high bandwidth capacity for RF-restricted environments such as airplanes and…

信息论 · 计算机科学 2016-11-18 Bilal A. Ranjha , Mohammadreza A. Kashani , Mohsen Kavehrad , Peng Deng

Analog-to-digital conversion (ADC) is a key bottleneck in scaling DSP-centric receiver architectures to multiGigabit/s speeds. Recent information-theoretic results, obtained under ideal channel conditions (perfect synchronization, no…

信息论 · 计算机科学 2011-12-21 Jaspreet Singh , Upamanyu Madhow

This paper reports experimental results on self-organizing wireless networks carried by small flying robots. Flying ad hoc networks (FANETs) composed of small unmanned aerial vehicles (UAVs) are flexible, inexpensive and fast to deploy.…

网络与互联网体系结构 · 计算机科学 2016-11-18 S. Rosati , K. Kruzelecki , G. Heitz , D. Floreano , B. Rimoldi

Conventional delay-Doppler (DD) communication and sensing systems require transmitting pilot frames at every channel coherence time interval in order to keep track of channel variations at the cost of spectral efficiency. In this paper, we…

信号处理 · 电气工程与系统科学 2026-04-09 Nishant Mehrotra , Sandesh Rao Mattu , Robert Calderbank

In future high-capacity wireless systems based on mmWave or massive multiple input multiple output (MIMO), the power consumption of receiver Analog to Digital Converters (ADC) is a concern. Although hybrid or analog systems with fewer ADCs…

信息论 · 计算机科学 2019-01-29 Waqas bin Abbas , Felipe Gomez-Cuba , Michele Zorzi

Movable antenna (MA) technology offers promising potential to enhance wireless communication by allowing flexible antenna movement. To maximize spatial degrees of freedom (DoFs), larger movable regions are required, which may render the…

信息论 · 计算机科学 2024-10-01 Lipeng Zhu , Wenyan Ma , Zhenyu Xiao , Rui Zhang

We consider the problem of peak-to-average power ratio (PAPR) reduction for orthogonal frequency-division multiplexing (OFDM) based large-scale multiple-input multipleoutput (MIMO) systems. A novel perturbation-assisted scheme is developed…

信息论 · 计算机科学 2016-07-12 Hengyao Bao , Jun Fang , Zhi Chen , Tao Jiang

A device-to-device (D2D) aided multi-antenna coded caching scheme is proposed to improve the average delivery rate and reduce the downlink (DL) beamforming complexity.} Novel beamforming and resource allocation schemes are proposed where…

信号处理 · 电气工程与系统科学 2023-02-02 Hamidreza Bakhshzad Mahmoodi , Jarkko Kaleva , Seyed Pooya Shariatpanahi , Antti Tolli

Wireless communications using light waves are called visible light communication. A technique called Physical-layer Network coding allows several users to communicate simultaneously over the same channel in a distributed space-time Coding…

信息论 · 计算机科学 2024-11-03 Abdellah Tahenni , Fatiha Merazka

We study the design of a DVB-S2 system in order to maximise spectrum efficiency. This task is usually challenging due to channel variability. Modern satellite communications systems such as DVB-SH and DVB-S2 rely mainly on a time sharing…

网络与互联网体系结构 · 计算机科学 2013-10-03 Hugo Meric , Jose Miguel Piquer

The demands for high data rates in 6G networks have driven the transition toward higher frequencies and larger antenna apertures, giving rise to the near-field communications. In the near-field region, spherical waves enable beam focusing…

信号处理 · 电气工程与系统科学 2026-05-29 Shupei Zhang , Boya Di , Lingyang Song

5G is envisioned to improve major key performance indicators (KPIs), such as peak data rate, spectral efficiency, power consumption, complexity, connection density, latency, and mobility. This chapter aims to provide a complete picture of…

信号处理 · 电气工程与系统科学 2019-02-19 Ali Fatih Demir , M. Elkourdi , M. Ibrahim , H. Arslan

This paper investigates the performance of physical layer security (PLS) in fluid antenna-aided communication systems under arbitrary correlated fading channels. In particular, it is considered that a single fixed-antenna transmitter aims…

In this paper, link selection is investigated in half-duplex (HD) dual-hop cooperative systems with multiple antennas at the relays. Alternate distributed beamforming (ADB) scheme is revisited for buffer-aided multi-antenna relay systems,…

信息论 · 计算机科学 2020-05-19 Jiayu Zhou , Deli Qiao , Haifeng Qian

The optoacoustic process can solve the longstanding challenge of wireless information transmission from an airborne unit to an underwater node (UWN). The nonlinear optoacoustic signal generated by proper laser parameters can propagate long…

信号处理 · 电气工程与系统科学 2022-08-30 Muntasir Mahmud , Mohamed Younis , Md Shafiqul Islam , Fow-Sen Choa , Gary Carter
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