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Detecting the High impedance fault (HIF) in distribution systems plays an important role in power utilization safety. However, many HIFs are challenging to be identified due to their low currents and diverse characteristics. In particular,…

系统与控制 · 电气工程与系统科学 2020-04-14 Mingjie Wei , Weisheng Liu , Hengxu Zhang , Fang Shi , Weijiang Chen

In this paper, we investigate the impact of fading channel correlation on the performance of dual-hop decode-and-forward (DF) simultaneous wireless information and power transfer (SWIPT) relay networks. More specifically, by considering the…

信息论 · 计算机科学 2023-05-09 Farshad Rostami Ghadi , F. Javier Lopez-Martinez

The performance of a multiuser communication system with single-antenna transmitting terminals and a multi-antenna base-station receiver is analytically investigated. The system operates under independent and non-identically distributed…

信息论 · 计算机科学 2016-10-27 Nikolaos I. Miridakis , Theodoros A. Tsiftsis , Corbett Rowell

This paper considers a dual-hop amplify-and-forward (AF) relaying system where the relay is equipped with multiple antennas, while the source and the destination are equipped with a single antenna. Assuming that the relay is subjected to…

信息论 · 计算机科学 2014-01-07 Guangxu Zhu , Caijun Zhong , Himal A. Suraweera , Zhaoyang Zhang , Chau Yuen

Intelligent reflecting surface (IRS) is an emerging key technology for the fifth-generation (5G) and beyond wireless communication systems to provide more robust and reliable communication links. In this paper, we propose a mixed dual-hop…

网络与互联网体系结构 · 计算机科学 2021-11-19 Gyan Deep Verma , Aashish Mathur , Yun Ai , Michael Cheffena

This paper considers multiple-input multiple-output (MIMO) relay communication in multi-cellular (interference) systems in which MIMO source-destination pairs communicate simultaneously. It is assumed that due to severe attenuation and/or…

信息论 · 计算机科学 2017-03-28 Muhammad R A Khandaker , Kai-Kit Wong

Channel uncertainty and co-channel interference are two major challenges in the design of wireless systems such as future generation cellular networks. This paper studies receiver design for a wireless channel model with both time-varying…

信息论 · 计算机科学 2009-10-15 Yan Zhu , Dongning Guo , Michael L. Honig

Wireless systems that carry delay-sensitive information (such as speech and/or video signals) typically transmit with fixed data rates, but may occasionally suffer from transmission outages caused by the random nature of the fading…

信息论 · 计算机科学 2014-04-01 Zoran Hadzi-Velkov , Nikola Zlatanov , Robert Schober

This chapter presents joint interference suppression and power allocation algorithms for DS-CDMA and MIMO networks with multiple hops and amplify-and-forward and decode-and-forward (DF) protocols. A scheme for joint allocation of power…

信息论 · 计算机科学 2013-01-28 Patrick Clarke , Rodrigo C. de Lamare

In this paper, we study a dual-hop mixed power line communication and radio-frequency communication (PLC/RF) system, where the connection between the PLC link and the RF link is made by a decode-and-forward (DF) or amplify-and-forward (AF)…

信息论 · 计算机科学 2020-11-19 Liang Yang , Xiaoqin Yan , Sai Li , Daniel Benevides da Costa , Mohamed-Slim Alouini

In this paper, we study a novel latency minimization problem in wireless federated learning (FL) across multi-hop networks. The system comprises multiple routes, each integrating leaf and relay nodes for FL model training. We explore a…

网络与互联网体系结构 · 计算机科学 2025-06-17 Shaba Shaon , Van-Dinh Nguyen , Dinh C. Nguyen

Reconfigurable Intelligent Surface (RIS) can create favorable multipath to establish strong links that are useful in millimeter wave (mmWave) communications. While previous works used Rayleigh or Rician fading, we use the fluctuating…

信息论 · 计算机科学 2020-11-10 Hongyang Du , Jiayi Zhang , Julian Cheng , Zhaohua Lu , Bo Ai

The hybrid relay selection (HRS) scheme, which adaptively chooses amplify-and-forward (AF) and decode-and-forward (DF) protocols, is very effective to achieve robust performance in wireless networks. This paper analyzes the frame error rate…

信息论 · 计算机科学 2012-11-13 Tianxi Liu , Lingyang Song , Yonghui Li , Qiang Huo , Bingli Jiao

Millimeter-wave and Terahertz frequencies, while promising high throughput and abundant spectrum, are highly susceptible to hardware non-idealities like phase-noise, which degrade the system performance and make transceiver implementation…

信息论 · 计算机科学 2020-10-28 Vishnu V. Ratnam

This paper studies incremental relay strategies for a two-user Gaussian relay-interference channel with an in-band-reception and out-of-band-transmission relay, where the link between the relay and the two receivers is modelled as a…

信息论 · 计算机科学 2012-12-13 Lei Zhou , Wei Yu

This paper investigates the average symbol error rate (ASER) performance of a dual-hop hybrid relaying system relying on both radio frequency (RF) and free space optical (FSO) links. Specifically, the RF link is used for supporting mobile…

信息论 · 计算机科学 2015-08-26 Lei Kong , Wei Xu , Lajos Hanzo , Hua Zhang , Chunming Zhao

We consider a three-node decode-and-forward (DF) half-duplex relaying system, where the source first harvests RF energy from the relay, and then uses this energy to transmit information to the destination via the relay. We assume that the…

信息论 · 计算机科学 2016-01-19 Zoran Hadzi-Velkov , Nikola Zlatanov , Trung Q. Duong , Robert Schober

Distributed massive multiple-input multiple-output (MIMO) combines the array gain of coherent MIMO processing with the proximity gains of distributed antenna setups. In this paper, we analyze how transceiver hardware impairments affect the…

信息论 · 计算机科学 2015-06-04 Emil Björnson , Michail Matthaiou , Antonios Pitarokoilis , Erik G. Larsson

In this paper, a multi-antenna assisted virtual full-duplex (FD) relaying with reliability-aware iterative decoding at destination node is proposed to improve system spectral efficiency and reliability. This scheme enables two half-duplex…

信息论 · 计算机科学 2017-10-19 Jiancao Hou , Sandeep Narayanan , Yi Ma , Mohammad Shikh-Bahaei

Radio-frequency (RF) impairments, that exist intimately in wireless communications systems, can severely degrade the performance of traditional multiple-input multiple-output (MIMO) systems. Although compensation schemes can cancel out part…

信息论 · 计算机科学 2014-06-17 Xinlin Zhang , Michail Matthaiou , Mikael Coldrey , Emil Björnson