Results 31 to 40 of about 5,097 (176)

An Improved Sub-Array Adaptive Beamforming Technique Based on Multiple Sources of Errors

Journal of Marine Science and Engineering, 2020
In this paper, a new robust adaptive beamforming method is proposed in order to improve the robustness against steering vector (SV) mismatches that arise from multiple types of array errors.
Zhuang Xie, Jiahua Zhu, Chongyi Fan, Xiaotao Huang   +3 more
doaj   +1 more source

Moments and autocorrelations of the signal to interference ratio in wireless communications [PDF]

, 2008
This paper presents a new unified analytical method for efficient computation of first and second order statistics of the signal-to-interference- plus-noise-ratio (SINR) in wireless communication systems. New exact expressions are derived for the moments
K. A. Hamdi, Hamdi, Khairi Ashour; id_orcid   +1 more
core   +1 more source

Analysis of the performance of adaptive arrays with autual coupling compensation

Tongxin xuebao, 2007
The performance of adaptive arrays with mutual coupling compensation was analyzed in detail.It was indicated that the adaptive array was able to suppress interference thoroughly.The output power of noise,however,was influenced by the direction of beam ...
LI Rong-feng 1, WANG Yong-liang 1, DAI Ling-yan 1, DING Qian-jun 1   +3 more
doaj   +2 more sources

Optimized Joint Relay and Antenna Selection for Enhanced Full‐Duplex Relay Networks

Engineering Reports, Volume 8, Issue 7, July 2026.
This study proposes a joint relay and antenna selection strategy for full‐duplex amplify‐and‐forward relay networks. By adaptively optimizing transmitter–receiver configurations based on channel conditions, the method reduces self‐interference, lowers outage probability, and symbol error rate, and enhances spectral efficiency, offering a scalable ...
Deepika Rani Sona, Visalakshi Annepu, Kalapraveen Bagadi, Olutayo O. Oyerinde   +3 more
wiley   +1 more source

CNN‐DDQN Spatial Learning for Fractional Frequency Reuse Optimization in 5G Heterogeneous Networks

Engineering Reports, Volume 8, Issue 7, July 2026.
This study proposes a spatially aware DRL framework that uses multichannel network‐state tensors and a lightweight CNN‐DDQN architecture to capture interference patterns and user clustering in 5G heterogeneous networks (HetNets). The model is computationally efficient with only 7361 trainable parameters, achieving 115× faster execution and < 10 ms ...
Christian Onu, Abdulwaheed Musa, Olalekan Ogunbiyi, Lambe Mutalub Adesina, Bilkisu Jimada‐Ojuolape, Monsurat Balogun, Abdurrhaman Ademola Isa, Aliyu Ahmed, Ishmael Zibani, Adamu Murtala Zungeru   +9 more
wiley   +1 more source

An analytical approach to SINR estimation in adjacent rectangular cells [PDF]

, 2020
Signal-to-interference-plus-noise ratio (SINR) experienced by a mobile user is the key metric determining the throughput it receives over a certain wireless technology of interest.
Begishev V., Moltchanov D., Ometov A., Gaidamaka Y., Andreev S., Samuylov A., Kovalchukov R.   +6 more
core   +3 more sources

Deep neural network design with SLNR and SINR criterions for downlink power allocation in multi-cell multi-user massive MIMO systems

ICT Express, 2023
In this paper, we propose a deep learning approach for solving power allocation problems in massive MIMO networks. We use signal-to-interference-plus-noise-ratio (SINR) and signal-to-leak-plus-noise ratio (SLNR) criteria for linear precoder design to ...
Ridho Hendra Yoga Perdana, Toan-Van Nguyen, Beongku An   +2 more
doaj   +1 more source

Optically Transparent Ka‐Band Absorber With Multi‐Fractal Rings and a Metal Mesh Ground Plane

Microwave and Optical Technology Letters, Volume 68, Issue 6, June 2026.
ABSTRACT An optically transparent absorber based on multi‐fractal ring resonators and a metal mesh ground plane is presented for Ka‐band applications. By merging multiple resonances, the proposed absorber maintains an absorption bandwidth from 25.8 to 31.1 GHz.
Junseong Bae, Seoyeong Min, Suho Chang, Daehyeon Kim, Donggeun An, Wonbin Hong, Youngno Youn   +6 more
wiley   +1 more source

DA and NDA SINR estimation in non Gaussian noise [PDF]

, 2015
In this paper, the problem of signal-to-interference plus noise ratio estimation over flat fading channels in non-Gaussian noise is addressed. Most previously published estimators assume the additive noise to be Gaussian.
Hamdi, K A; id_orcid, Almradi, A, Khairi Ashour Hamdi, Ahmed Almradi   +3 more
core   +1 more source

Joint Interference and Phase Alignment among Data Streams in Multicell MIMO Broadcasting

Applied Sciences, 2018
For the problem of channel state information (CSI) delay and error, this paper proposes a joint interference and phase alignment algorithm based on Bayesian estimation and power allocation among data streams for multicell, multiple-input multiple-output ...
Waleed Shahjehan, Syed Waqar Shah, Jaime Lloret, Ignacio Bosch   +3 more
doaj   +1 more source