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相关论文: Learning-Based Symbol Level Precoding: A Memory-Ef…

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Symbol Level Precoding (SLP) has attracted significant research interest due to its ability to exploit interference for energy-efficient transmission. This paper proposes an unsupervised deep-neural network (DNN) based SLP framework.…

信号处理 · 电气工程与系统科学 2021-11-17 Abdullahi Mohammad , Christos Masouros , Yiannis Andreopoulos

This paper proposes an unsupervised learning-based precoding framework that trains deep neural networks (DNNs) with no target labels by unfolding an interior point method (IPM) proximal `log' barrier function. The proximal `log' barrier…

信号处理 · 电气工程与系统科学 2021-10-20 Abdullahi Mohammad , Christos Masouros , Yiannis Andreopoulos

This paper proposes a memory-efficient deep neural network (DNN) framework-based symbol level precoding (SLP). We focus on a DNN with realistic finite precision weights and adopt an unsupervised deep learning (DL) based SLP model…

信号处理 · 电气工程与系统科学 2021-11-30 Abdullahi Mohammad , Christos Masouros , Yiannis Andreopoulos

The recently emerged symbol-level precoding (SLP) technique has been regarded as a promising solution in multi-user wireless communication systems, since it can convert harmful multi-user interference (MUI) into beneficial signals for…

信息论 · 计算机科学 2021-04-21 Zhu Bo , Rang Liu , Ming Li , Qian Liu

Symbol-level precoding (SLP) manipulates the transmitted signals to accurately exploit the multi-user interference (MUI) in the multi-user downlink. This enables that all the resultant interference contributes to correct detection, which is…

信息论 · 计算机科学 2022-11-29 Junwen Yang , Ang Li , Xuewen Liao , Christos Masouros

This paper considers symbol-level precoding (SLP) for multiuser multiple-input single-output (MISO) downlink. SLP is a nonlinear precoding scheme that utilizes symbol constellation structures. It has been shown that SLP can outperform the…

信息论 · 计算机科学 2018-03-15 Yatao Liu , Wing-Kin Ma

This paper focuses on designing robust symbol-level precoding (SLP) in an overlay cognitive radio (CR) network, where the primary and secondary networks transmit signals concurrently. When the primary base station (PBS) shares data and…

信号处理 · 电气工程与系统科学 2023-04-11 Lu Liu , Christos Masouros , A. Lee Swindlehurst

In this paper, we propose an interference exploitation symbol-level precoding (SLP) method for multi-level modulations via an in-block power allocation scheme to greatly reduce the signaling overhead. Existing SLP approaches require the…

信息论 · 计算机科学 2021-03-11 Ang Li , Fan Liu , Xuewen Liao , Yuanjun Shen , Christos Masouros

Symbol-level precoding (SLP) has recently emerged as a new paradigm for physical-layer transmit precoding in multiuser multi-input-multi-output (MIMO) channels. It exploits the underlying symbol constellation structure, which the…

信号处理 · 电气工程与系统科学 2022-05-04 Yatao Liu , Mingjie Shao , Wing-Kin Ma , Qiang Li

Although symbol-level precoding (SLP) based on constructive interference (CI) exploitation offers performance gains, its high complexity remains a bottleneck. This paper addresses this challenge with an end-to-end deep learning (DL)…

信号处理 · 电气工程与系统科学 2025-10-03 Jinshuo Zhang , Yafei Wang , Xinping Yi , Wenjin Wang , Shi Jin , Symeon Chatzinotas , Björn Ottersten

In this letter, we study the optimal solution of the multiuser symbol-level precoding (SLP) for minimization of the total transmit power under given signal-to-interference-plus-noise ratio (SINR) constraints. Adopting the distance…

信号处理 · 电气工程与系统科学 2018-07-30 A. Haqiqatnejad , F. Kayhan , B. Ottersten

This paper addresses the optimization problem of symbol-level precoding (SLP) in the downlink of a multiuser multiple-input multiple-output (MU-MIMO) wireless system while the precoder's output is subject to partially-known distortions. In…

信号处理 · 电气工程与系统科学 2019-09-02 Alireza Haqiqatnejad , Shahram Shahbazpanahi , Björn Ottersten

This paper investigates the robust design of symbol-level precoding (SLP) for multiuser multiple-input multiple-output (MIMO) downlink transmission with imperfect channel state information (CSI) caused by channel aging. By utilizing the a…

信号处理 · 电气工程与系统科学 2024-02-08 Yafei Wang , Xinping Yi , Hongwei Hou , Wenjin Wang , Shi Jin

Deep neural networks have been widely used in communication signal recognition and achieved remarkable performance, but this superiority typically depends on using massive examples for supervised learning, whereas training a deep neural…

信号处理 · 电气工程与系统科学 2023-11-15 Weidong Wang , Hongshu Liao , Lu Gan

This paper considers symbol-level precoding (SLP) for multiuser multi-input single-output (MISO) downlink transmission with the aid of intelligent reflecting surface (IRS). Specifically, by assuming one-bit transmitted signals at the base…

信号处理 · 电气工程与系统科学 2020-12-02 Silei Wang , Qiang Li , Mingjie Shao

A new supervised learning algorithm, SNN/LP, is proposed for Spiking Neural Networks. This novel algorithm uses limited precision for both synaptic weights and synaptic delays; 3 bits in each case. Also a genetic algorithm is used for the…

神经与进化计算 · 计算机科学 2014-07-02 Evangelos Stromatias , John Marsland

In this paper, we propose a low-complexity method to approximately solve the SINR-constrained optimization problem of symbol-level precoding (SLP). First, assuming a generic modulation scheme, the precoding optimization problem is recast as…

信号处理 · 电气工程与系统科学 2019-03-11 Alireza Haqiqatnejad , Farbod Kayhan , Bjorn Ottersten

In this paper, we investigate the downlink transmission of a multiuser multiple-input single-output (MISO) channel under a symbol-level precoding (SLP) scheme, having imperfect channel knowledge at the transmitter. In defining the SLP…

信号处理 · 电气工程与系统科学 2018-08-14 Alireza Haqiqatnejad , Farbod Kayhan , Bjorn Ottersten

Although recent advancements in end-to-end learning-based link prediction (LP) methods have shown remarkable capabilities, the significance of traditional similarity-based LP methods persists in unsupervised scenarios where there are no…

人工智能 · 计算机科学 2024-10-28 Chenhan Zhang , Weiqi Wang , Zhiyi Tian , James Jianqiao Yu , Mohamed Ali Kaafar , An Liu , Shui Yu

Prediction of late reverberation component using multi-channel linear prediction (MCLP) in short-time Fourier transform (STFT) domain is an effective means to enhance reverberant speech. Traditionally, a speech power spectral density (PSD)…

音频与语音处理 · 电气工程与系统科学 2018-12-05 Srikanth Raj Chetupalli , Thippur V. Sreenivas
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