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Advanced Search Results For "CHANNEL estimation"

1 - 10 of 7,169 results for
 "CHANNEL estimation"
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Optimization of Channel Estimation Using ELMx-based in Massive MIMO.

Publication Type:Academic Journal

Source(s):Computers, Materials & Continua. 2022, Vol. 73 Issue 1, p103-118. 16p.

Abstract:In communication channel estimation, the Least Square (LS) technique has long been a widely accepted and commonly used principle. This is because the simple calculation method is compared with other channel estimation methods. The Minimum Mean Squares ...

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ResNet-Enabled cGAN Model for Channel Estimation in Massive MIMO System.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 8/29/2022, p1-9. 9p.

Abstract:Massive multiple-input multiple-output (MIMO), or large-scale MIMO, is one of the key technologies for future wireless networks to exhibit a large accessible spectrum and throughput. The performance of a massive MIMO system is strongly reliant on the n...

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A Channel State Information-Based Key Generation Scheme for Internet of Things.

Publication Type:Academic Journal

Source(s):Security & Communication Networks. 5/14/2022, p1-15. 15p.

Abstract:Internet-of-Things (IoT) networks generally contain resource-constrained devices that require an energy-efficient key generation procedure to producing secure keys at a faster rate. The physical characteristics of the wireless channel can be exploited ...

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Reinforcement Learning-Based Adaptive Switching Scheme for Hybrid Optical-Acoustic AUV Mobile Network.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 5/2/2022, p1-14. 14p.

Abstract:In an autonomous underwater vehicles– (AUVs–) based optical-acoustic hybrid network, it is critical to achieve ultra high-speed reliable communications, in order to reap the benefits of the complementary systems and perform high-bandwidth and low-laten...

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基于 GSA-BP 神经网络的OFDM系统信道估计算法.

Publication Type:Academic Journal

Source(s):Journal of Northeastern University (Natural Science). Jun2022, Vol. 43 Issue 6, p769-775. 7p.

Abstract:针对正交频分复用(orthogonal frequency division multiplexing, OFDM)系统中存在的不可忽视的非线性噪声问题,为了能够更好了解信道特性,需要利用信道估计获得信道状态信息,提出一种基于黄金正弦优化BP(golden sine algorithm,GSA-BP)神经网络的OFDM系统信道估计算法,克服了传统 BP神经网络算法容易陷入局部极值的问题,提升了信道估计算法的估计精度.首先通过LS信道估计算法获得信道的初始估计,再将其通过GSA-BP神经网络算法得到信...

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Sea Experimental for Compressive Sensing-Based Sparse Channel Estimation of Underwater Acoustic TDS-OFDM System.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 5/5/2022, p1-14. 14p.

Abstract:Due to the high spectral efficiency (SE) and fast synchronization, the time-domain synchronization orthogonal frequency division multiplexing (TDS-OFDM) system has gotten much more attraction of researchers as compared to cyclic-prefix (CP) and zero pa...

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Machine Learning Empowered Accurate CSI Prediction for Large-Scale 5G Networks.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 3/31/2022, p1-6. 6p.

Abstract:Wi-Fi networks rely on channel estimation to ensure their performance. The computational complexity and dependability of fifth generation telecommunication networks have significantly improved using supervised learning. In this paper, we develop a chan...

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Pilot Allocation and Data Power Optimization Based on Access Point Selection in Cell-Free Massive MIMO.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 4/7/2022, p1-10. 10p.

Abstract:Focusing on the pilot contamination problem of cell-free massive multi-input multi-output (MIMO), a pilot allocation algorithm based on access point (AP) selection is proposed. To improve the system performance further, data power optimization is carri...

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Multi‐path separation and parameter estimation by single DMA in fading channel.

Publication Type:Academic Journal

Source(s):IET Communications (Wiley-Blackwell). Aug2022, Vol. 16 Issue 13, p1475-1485. 11p.

Abstract:The propagation of electromagnetic waves will produce multi‐path fading of wireless channel, which degrades communication performance substantially. If multi‐path can be separated, better signal transmission and reception strategies can be designed to ...

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Time-Domain Channel Estimation Scheme for OFDM over Fast Fading Channels.

Publication Type:Academic Journal

Source(s):Wireless Communications & Mobile Computing. 2/27/2022, p1-9. 9p.

Abstract:In high-mobility scenarios, the time variation of mobile radio channels leads to a loss of orthogonality among subcarriers in orthogonal frequency division multiplexing (OFDM) systems, resulting in intercarrier interference (ICI) and performance deteri...

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