Results 51 to 60 of about 20,102 (166)

Exploiting Active RIS in NOMA Networks With Hardware Impairments

IEEE Transactions on Vehicular Technology
Active reconfigurable intelligent surface (ARIS) is a promising way to compensate for multiplicative fading attenuation by amplifying and reflecting event signals to selected users. This paper investigates the performance of ARIS assisted non-orthogonal multiple access (NOMA) networks over cascaded Nakagami-m fading channels.
Xinwei Yue, Meiqi Song, Chongjun Ouyang, Yuanwei Liu, Tian Li 0001, Tianwei Hou   +5 more
openaire   +2 more sources

Achieving Phase Coherency and Gain Stability in Active Antenna Arrays for Sub-6 GHz FDD and TDD FD-MIMO: Challenges and Solutions

IEEE Access, 2020
Full-dimension MIMO (FD-MIMO) using planar active antenna systems (AAS) is considered a critical technology for fifth-generation (5G) cellular systems to improve network capacity. An AAS is typically subject to hardware impairments that negatively impact
Reza Monir Vaghefi, Ramesh Chembil Palat, Giovanni Marzin, Kiran Basavaraju, Yiping Feng, Mihai Banu   +5 more
doaj   +1 more source

Iot-Enabled Real-Time Driver Monitoring System for Drowsiness and Alcohol Detection Using Arduino and OpenCV [PDF]

EPJ Web of Conferences
Driver drowsiness and alcohol impairment account for approximately 30-35% of serious road crash incidents globally, claiming over 400,000 lives annually (World Health Organization).
B Usha Rani, Imran Mohammad, Nishanth S., Naik Vikas, P Ashok   +4 more
doaj   +1 more source

Performances of Multitones for Ultra-Wideband Software-Defined Radar

IEEE Access, 2017
From the literature review, it is apparent that there is a gap in quantifying the performances of multitone waveforms specifically for radar applications and experimental results not commonly found. This paper focuses on the radar performance analysis of
Julien Le Kernec, Olivier Romain
doaj   +1 more source

Half-Duplex Energy Harvesting Relay Network over Different Fading Environment: System Performance with Effect of Hardware Impairment

Applied Sciences, 2019
In this paper, we introduce a half-duplex (HD) energy harvesting (EH) relay network over the different fading environment with the effect of hardware impairment (HI).
Duy-Hung Ha, Si Thien Chau Dong, Tan N. Nguyen, Tran Thanh Trang, Miroslav Voznak   +4 more
doaj   +1 more source

Massive MIMO full-duplex relaying with hardware impairments

Journal of Communications and Networks, 2017
Massive multiple-input-multiple-output full-duplex relaying (MM-FDR), which exploits both the benefits of large-scale antenna arrays and full-duplex transmission, is considered as a promising technology to achieve very high spectral efficiency in the future wireless network.
Wei Xie 0001, Xiaochen Xia, Youyun Xu, Kui Xu 0001, Yurong Wang   +4 more
openaire   +1 more source

Effects of Residual Hardware Impairments on Secure NOMA-Based Cooperative Systems

IEEE Access, 2020
Non-orthogonal multiple access (NOMA) has been proposed as a promising technology that is capable of improving the spectral efficiency of fifth-generation wireless networks and beyond.
Meiling Li, Bassant Selim, Sami Muhaidat, Paschalis C. Sofotasios, Mehrdad Dianati, Paul D. Yoo, Jie Liang, Anhong Wang   +7 more
doaj   +1 more source

Study of Uplink Interference in UMTS Network: ASIACELL Company, Iraq

Kurdistan Journal of Applied Research, 2020
Universal Mobile Telecommunications System (UMTS), is the third generation (3G) of mobile communication which is based on the wideband code division multiple access (W-CDMA) radio access to provide bandwidth and spectral efficiency.
Bakhtiar Ali Karim, Bzhar Rahaman Othman
doaj   +1 more source

Understanding Radio Frequency Fingerprint Identification With RiFyFi Virtual Databases

IEEE Open Journal of the Communications Society
This paper proposes to explore the Radio Frequency Fingerprint (RFF) identification with a virtual database generator. RFF is a unique signature created in the emitter transmission chain by the hardware impairments.
Alice Chillet, Robin Gerzaguet, Karol Desnos, Matthieu Gautier, Elena Simona Lohan, Erwan Nogues, Mikko Valkama   +6 more
doaj   +1 more source

Two-Way Half Duplex Decode and Forward Relaying Network with Hardware Impairment over Rician Fading Channel: System Performance Analysis

Elektronika ir Elektrotechnika, 2018
In this paper, the system performance analysis of a two-way decode and forward (DF) relaying network over the Rician fading environment under hardware impairment effect is proposed, analyzed and demonstrated. In this analysis, the analytical mathematical
Tan N. Nguyen, Phuong T. Tran, Tran Hoang Quang Minh, Miroslav Voznak, Lukas Sevcik   +4 more
doaj   +1 more source