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In this paper, we studied the problem of beam alignment for millimeter wave (mmWave) communications, in which we assume a hybrid analog and digital beamforming structure is employed at the transmitter (i.e. base station), and an…

信息论 · 计算机科学 2019-09-04 Xingjian Li , Jun Fang , Huiping Duan , Zhi Chen , Hongbin Li

The growing computational demands of training large language models (LLMs) necessitate more efficient methods. Quantized training presents a promising solution by enabling low-bit arithmetic operations to reduce these costs. While FP8…

机器学习 · 计算机科学 2026-05-18 Ruizhe Wang , Yeyun Gong , Xiao Liu , Guoshuai Zhao , Ziyue Yang , Baining Guo , Zhengjun Zha , Peng Cheng

An efficient hardware implementation for Simultaneous Localization and Mapping (SLAM) methods is of necessity for mobile autonomous robots with limited computational resources. In this paper, we propose a resource-efficient FPGA…

信号处理 · 电气工程与系统科学 2023-05-31 Keisuke Sugiura , Hiroki Matsutani

This paper presents a comprehensive exploration of Fast Fourier Transform (FFT) and linear convolution implementations, integrating both conventional methods and novel approaches leveraging the Bit Slicing Multiplier (BSM) technique. The…

信号处理 · 电气工程与系统科学 2024-07-03 Aravind Kumar N , Hari Krishna S , Anita Angeline A

The full-potential linearized augmented-plane wave (FP-LAPW) method is well known to enable most accurate calculations of the electronic structure and magnetic properties of crystals and surfaces. The implementation of atomic forces has…

凝聚态物理 · 物理学 2009-10-31 Max Petersen , Frank Wagner , Lars Hufnagel , Matthias Scheffler , Peter Blaha , Karlheinz Schwarz

In this paper, we use multithreaded fast Fourier transforms provided in three highly optimized packages, FFTW-2.1.5, FFTW-3.3.7, and Intel MKL FFT, to present a novel model-based parallel computing technique as a very effective and portable…

分布式、并行与集群计算 · 计算机科学 2018-08-17 Semyon Khokhriakov , Ravi Reddy , Alexey Lastovetsky

In this paper, we propose a practical adaptive coding modulation scheme to approach the capacity of free-space optical (FSO) channels with intensity modulation/direct detection based on probabilistic shaping. The encoder efficiently adapts…

信息论 · 计算机科学 2020-12-01 Ahmed Elzanaty , Mohamed-Slim Alouini

Detection algorithms for multiple-input multiple-output (MIMO) wireless systems based on orthogonal frequency-division multiplexing (OFDM) typically require the computation of a QR decomposition for each of the data-carrying OFDM tones. The…

信息论 · 计算机科学 2009-10-30 Davide Cescato , Helmut Bölcskei

This study examines 4-bit quantization methods like GPTQ in large language models (LLMs), highlighting GPTQ's overfitting and limited enhancement in Zero-Shot tasks. While prior works merely focusing on zero-shot measurement, we extend task…

The rapid development of large language models (LLM) has greatly enhanced everyday applications. While many FPGA-based accelerators, with flexibility for fine-grained data control, exhibit superior speed and energy efficiency compared to…

硬件体系结构 · 计算机科学 2026-03-24 Zifan He , Shengyu Ye , Rui Ma , Yang Wang , Jason Cong

Minimum-Weight Perfect Matching (MWPM) decoding is important to quantum error correction decoding because of its accuracy. However, many believe that it is difficult, if possible at all, to achieve the microsecond latency requirement posed…

硬件体系结构 · 计算机科学 2025-02-21 Yue Wu , Namitha Liyanage , Lin Zhong

Fourier Ptychographic Microscopy (FPM) is an imaging procedure that overcomes the traditional limit on Space-Bandwidth Product (SBP) of conventional microscopes through computational means. It utilizes multiple images captured using a low…

计算机视觉与模式识别 · 计算机科学 2022-08-17 Atreyee Saha , Salman S Khan , Sagar Sehrawat , Sanjana S Prabhu , Shanti Bhattacharya , Kaushik Mitra

This paper, addressing the integration requirements of radar imaging and communication for High-Altitude Platform Stations (HAPs) platforms, designs a waveform based on linear frequency modulated (LFM) frequency-hopping signals that…

信号处理 · 电气工程与系统科学 2024-12-24 Bang Huang , Sajid Ahmed , Mohamed-Slim Alouini

Continuous phase modulation (CPM) with 1-bit quantization at the receiver is promising in terms of energy and spectral efficiency. In this study, CPM waveforms with symbol durations significantly shorter than the inverse of the signal…

信息论 · 计算机科学 2019-10-16 Rodrigo R. M. de Alencar , Lukas T. N. Landau

This paper proposes an accurate algorithm to implement calibration-free wavelength modulation spectroscopy based on even-order harmonics. The proposed algorithm, analytically deduced from a much more accurate Voigt function model, enabling…

仪器与探测器 · 物理学 2021-11-25 Yihong Wang , Bin Zhou , Bubin Wang , Rong Zhao

The growing demand for Large Language Models (LLMs) in applications such as content generation, intelligent chatbots, and sentiment analysis poses considerable challenges for LLM service providers. To efficiently use GPU resources and boost…

This paper shows that it is possible to improve the computational cost, the memory requirements and the accuracy of Quick Fourier Transform (QFT) algorithm for power-of-two FFT (Fast Fourier Transform) just introducing a slight modification…

数据结构与算法 · 计算机科学 2013-01-07 Lorenzo Pasquini

In space applications, hardware (HW) implementation is made more expensive not only by the levels of performance required, but also by complex and rigorous HW qualification tests. Reducing qualification cost and time is thus a key design…

信号处理 · 电气工程与系统科学 2023-10-27 Francesco Silino , Fabio Dell'Acqua , Pietro Savazzi , Anna Vizziello , Diego Biz , Federico Brega

In this paper, we propose a progressive learning paradigm for transformer-based variable-rate image compression. Our approach covers a wide range of compression rates with the assistance of the Layer-adaptive Prompt Module (LPM). Inspired…

计算机视觉与模式识别 · 计算机科学 2023-11-29 Shiyu Qin , Yimin Zhou , Jinpeng Wang , Bin Chen , Baoyi An , Tao Dai , Shu-Tao Xia

Despite the recent advances in model compression techniques for deep neural networks, deploying such models on ultra-low-power embedded devices still proves challenging. In particular, quantization schemes for Gated Recurrent Units (GRU)…