Results 31 to 40 of about 13,322 (283)

Sum Rate Optimization Scheme of UAV-Assisted NOMA under Hardware Impairments

open access: yesApplied Sciences, 2023
In the unmanned aerial vehicle (UAV) assisted non-orthogonal multiple access (NOMA) networks, the practical hardware impairments (HIs) and resource allocation is still a challenging problem.
Xiaoyu Wan   +4 more
doaj   +1 more source

Privacy-Preserving Wireless Federated Learning Exploiting Inherent Hardware Impairments [PDF]

open access: yes, 2021
We consider a wireless federated learning system where multiple data holder edge devices collaborate to train a global model via sharing their parameter updates with an honest-but-curious parameter server.
Rezaei Aghdam, Sina   +3 more
core   +1 more source

End-to-end Autoencoder for Superchannel Transceivers with Hardware Impairment [PDF]

open access: yesOptical Fiber Communication Conference (OFC) 2021, 2021
We propose an end-to-end learning-based approach for superchannel systems impaired by non-ideal hardware component. Our system achieves up to 60% SER reduction and up to 50% guard band reduction compared with the considered baseline scheme.
Jinxiang Song   +4 more
openaire   +3 more sources

Simultaneous information and power transfer with transmitters with hardware impairments [PDF]

open access: yes2016 International Symposium on Wireless Communication Systems (ISWCS), 2016
We investigate the performance of a communication system with simultaneous wireless information and power transfer capabilities under non-ideal transmitter hardware. We adopt an experimentally validated additive noise model in which the level of the noise at an antenna is proportional to the signal power at that antenna. We consider the linear precoder
Ayça Özçelikkale   +2 more
openaire   +1 more source

Impact of improper Gaussian signaling on hardware impaired systems [PDF]

open access: yes2017 IEEE International Conference on Communications (ICC), 2017
In this paper, we accurately model the hardware impairments (HWI) as improper Gaussian signaling (IGS) which can characterize the asymmetric characteristics of different HWI sources. The proposed model encourages us to adopt IGS scheme for transmitted signal that represents a general study compared with the conventional scheme, proper Gaussian ...
Sidrah Javed   +3 more
openaire   +1 more source

Impact of Hardware Impairments on Outage Performance of Hybrid Satellite-Terrestrial Relay Systems

open access: yesIEEE Access, 2019
The hardware impairments of transceiver nodes that generate signal distortions degrade the reliability performance of communication systems. This paper investigates the impact of hardware imperfections on the outage performance of hybrid satellite ...
Hang Wu   +6 more
doaj   +1 more source

Performance analysis of RIS aided NOMA networks with hardware impairments

open access: yesIET Communications, 2022
Reconfigurable intelligent surface (RIS) has stimulated their potential applications for improving the performance of wireless communication networks.
Zhiping Lu   +3 more
doaj   +1 more source

An additive noise modeling technique for accurate statistical study of residual RF hardware impairments [PDF]

open access: yes, 2019
Hardware impairments are the inevitable limiting factors in radio frequency communication systems, and in particular in mm-wave, the impairments can severely affect system performance.
Mohammad Hossein Moghaddam   +8 more
core   +1 more source

The hardware impairments impact on fixed-gain AF relaying performance in Nakagami-m fading

open access: yes, 2016
The effects of joint hardware impairments on the performance of fixed gain amplify-and-forward (AF) relaying are studied. By considering IQ imbalance at the source and destination and the nonlinear relay the outage probability over Nakagami-m fading ...
Budimir, D.   +3 more
core   +1 more source

Phase Impairment Estimation for mmWave MIMO Systems with Low Resolutions ADC and Imperfect CSI

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2022
Multiple-Input Multiple-Output systems operating at millimeter wave band (mmWave MIMO) are a promising technology next generations of mobile networks. In practice, the non-ideal hardware is a challenge for commercially viable mmWave MIMO transceivers and
Nguyen Dinh Ngoc, Kien Truong
doaj   +1 more source

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