High mobility channel estimation

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August undefined, 2024

WebApr 15, 2024 · Ski jumping is a high-speed sport, which makes it difficult to accurately analyze the technical motion in a subjective way. To solve this problem, we propose an image-based pose estimation method ... WebIn high-speed railways, the wireless channel and network topology change rapidly due to the high-speed movement of trains and the constant change of the location of …

Channel estimation, equalisation, and evaluation for high …

WebJan 10, 2024 · In this paper, we propose a novel channel estimation algorithm based on Long Short-Term Memory (LSTM) for UAV air-to-ground transmission to obtain Channel State Information (CSI). To estimate the current slot CSI, we construct the input, forget, and output gates to learn the time correlation of UAV channel. WebWorking at high RF power leads gallium nitride (GaN) high electron mobility transistors (HEMT) to self-heating that poses a limit to device performances and reliability. Thermal … east vs iter

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WebNov 30, 2024 · High mobility channel estimation is crucial for beyond 5G (B5G) or 6G wireless communication networks. This paper is concerned with channel estimation of high mobility OFDM communication... WebOct 1, 2024 · In high-speed mobility scenarios, the wireless channel is frequency-time doubly selective fading channel, which will bring challenges to the channel estimation. Fig. 1. Network architecture of high-speed railway communication system. WebWorking at high RF power leads gallium nitride (GaN) high electron mobility transistors (HEMT) to self-heating that poses a limit to device performances and reliability. Thermal characterization is t east volusia news

Artificial intelligence for channel estimation in multicarrier …

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WebIn high-speed railways, the wireless channel and network topology change rapidly due to the high-speed movement of trains and the constant change of the location of communication equipment. The topology is affected by channel noise, making accurate channel estimation more difficult. Therefore, the way to obtain accurate channel state information (CSI) is the … http://www.diva-portal.org/smash/get/diva2:538857/fulltext01 cumene from phenolWebJun 3, 2024 · In summary, in order to improve the robustness and reliability of the end-to-end communication link of CPS, channel estimation and interpolation is implemented based on Bayesian filtering and the theories of BEM, joint estimation of channel response, and time domain correlation coefficient. east village wines and spirits

"WebIn this paper, we propose one uplink-aided high mobility downlink channel estimation scheme for the massive MIMO-OTFS networks. Specifically, we firstly formulate the time domain massive MIMO-OTFS signal model along the uplink and adopt the expectation maximization based variational Bayesian (EM-VB) framework to recover the uplink … " - High mobility channel estimation

High mobility channel estimation

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WebJan 26, 2024 · Extremely large-scale multiple-input-multiple-output (XL-MIMO) is promising to meet the high rate requirements for future 6G. To realize efficient precoding, accurate channel state information is essential. Existing channel estimation algorithms with low pilot overhead heavily rely on the channel sparsity in the angular domain, which is achieved by … WebJan 7, 2015 · The high mobility gives rise to extra interference i.e inter-carrier interference (ICI). That is the main obstacle in estimating the channel. A good estimator should first …

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WebIn section 5 we explain the power spectrum estimation of the time-variant channel effected by the Doppler shifts produced by user mobility. Section 5 and 5 explain the periodogram, the method which used to estimate the power spectrum of the WINNER model. WebJun 8, 2024 · In this paper, we propose one uplink-aided high mobility downlink channel estimation scheme for the massive MIMO-OTFS networks. Specifically, we firstly …

WebApr 12, 2024 · Real-time data-intensive applications in highly mobile environments with high data rates and low latency are one of the key requirements for beyond fifth-generation (5 G) communications. Towards this end, a combination of the millimeter wave (mmWave) band with large available spectrum and orthogonal time-frequency space (OTFS) modulation, … WebDec 1, 2024 · The channel estimation based on superimposed pilot is a semi-blind channel estimation, which embeds low-power pilot symbols into the transmitted signals through …

WebOct 28, 2024 · This paper presents the channel gain estimation algorithm for the MIMO-OFDM system under the high-speed movement environments. WebMay 1, 2024 · Channel estimation is of great importance to ensure a reliable wireless communication service for users in high mobility scenarios. Besides, some key …

WebMar 16, 2024 · propose one uplink-aided high mobility downlink channel estimation scheme for the massive MIMO-OTFS networks. Specifically, we firstly formulate the time domain massive MIMO-OTFS signal model along the uplink and adopt the expectation maximization based variational Bayesian (EM-VB) framework to

WebAug 18, 2024 · Channel estimation scheme for OFDM modulated transmissions usually combines an initial block-pilot-assisted stage with a tracking one based on comb or scattered pilots distributed among user data in the signal frame. The channel reconstruction accuracy in the former stage has a significant impact on tracking efficiency of the … cumene methodWebCharlotte, North Carolina east voyager academy of charlotteWebMar 16, 2024 · propose one uplink-aided high mobility downlink channel estimation scheme for the massive MIMO-OTFS networks. Specifically, we firstly formulate the time domain … cumene is calledWebApr 6, 2024 · A two-stage channel-estimation method based on generative adversarial networks (cGAN) is proposed for MIMO-OFDM systems in high-mobility scenarios and has better robustness than the current N2N-cGAN algorithm. In high-speed railways, the wireless channel and network topology change rapidly due to the high-speed movement of trains … cumene msds sheetWebDec 2, 2024 · For instance, a regression-aided technique was indicated for channel estimation in high-mobility and nonlinear deep fading scenarios. A comprehensive survey about ML in the vehicular network context is found in [ 43 ], reviewing and discussing the AI-based channel estimation techniques in the context of high-mobility OFDM systems. east vs west 5 livestreamWebJun 1, 2014 · This paper studies the optimum system designs of high mobility wireless communication systems with channel estimation errors. In high mobility systems, the … east voyager academy of charlotte ncWebApr 15, 2024 · For instance, in ref. , an uplink pilot based channel estimation for downlink adaptive transmission in time division duplexing (TDD) systems was investigated, where the energy efficiency (EE) of mobile users is optimized, while the relationship and tradeoff among pilot power, channel estimation, and downlink link adaptation is revealed. cumene is prepared by