中文
相关论文

相关论文: Soft Decision Cooperative Spectrum Sensing Based U…

200 篇论文

Recent advances in random matrix theory have spurred the adoption of eigenvalue-based detection techniques for cooperative spectrum sensing in cognitive radio. Most of such techniques use the ratio between the largest and the smallest…

信息论 · 计算机科学 2009-09-23 Federico Penna , Roberto Garello , Maurizio A. Spirito

Cooperative spectrum sensing, despite its effectiveness in enabling dynamic spectrum access, suffers from location privacy threats, merely because secondary users (SUs)' sensing reports that need to be shared with a fusion center to make…

网络与互联网体系结构 · 计算机科学 2018-06-05 Mohamed Grissa , Attila A. Yavuz , Bechir Hamdaoui

Spectrum sensing is a fundamental and critical issue for opportunistic spectrum access in cognitive radio networks. Among the many spectrum sensing methods, the information theoretic criteria (ITC) based method is a promising blind method…

信息论 · 计算机科学 2010-08-05 Rui Wang , Meixia Tao

Precise measurement of frequency sensitivity coefficients (FSCs) of some physical effects contributing to uncertainty is an important work in type-B uncertainty (u_B) evaluation of atomic frequency standards. We proposed a method based on…

量子物理 · 物理学 2019-09-11 Qian Wang , Ning Zhang , Rong Wei , Yuzhu Wang

In this paper, performance of cognitive transmission over time-selective flat fading channels is studied under quality of service (QoS) constraints and channel uncertainty. Cognitive secondary users (SUs) are assumed to initially perform…

信息论 · 计算机科学 2010-11-04 Sami Akin , Mustafa Cenk Gursoy

With the advent of the 5th generation of wireless standards and an increasing demand for higher throughput, methods to improve the spectral efficiency of wireless systems have become very important. In the context of cognitive radio, a…

信息论 · 计算机科学 2018-03-14 Vishnu Raj , Irene Dias , Thulasi Tholeti , Sheetal Kalyani

Various primary user (PU) radios have been allocated into fixed frequency bands in the whole spectrum. A cognitive radio network (CRN) should be able to perform the wideband spectrum sensing (WSS) to detect temporarily unoccupied frequency…

信息论 · 计算机科学 2011-02-21 Peng Zhang , Robert Qiu

In cognitive radio, spectrum sensing is a key component to detect spectrum holes (i.e., channels not used by any primary users). Collaborative spectrum sensing among the cognitive radio nodes is expected to improve the ability of checking…

信息论 · 计算机科学 2015-11-23 Jia , Meng , Wotao Yin , Husheng Li , Ekram Houssain , Zhu Han

Sequential change-point detection plays a critical role in numerous real-world applications, where timely identification of distributional shifts can greatly mitigate adverse outcomes. Classical methods commonly rely on parametric density…

机器学习 · 统计学 2025-01-23 Wenbin Zhou , Liyan Xie , Zhigang Peng , Shixiang Zhu

This paper considers the problem of detecting a high dimensional signal (not necessarily sparse) based on compressed measurements with physical layer secrecy guarantees. First, we propose a collaborative compressive detection (CCD)…

应用统计 · 统计学 2015-02-19 Bhavya Kailkhura , Thakshila Wimalajeewa , Pramod K. Varshney

Resilient algorithms in high-performance computing are subject to rigorous non-functional constraints. Resiliency must not increase the runtime, memory footprint or I/O demands too significantly. We propose a task-based soft error detection…

软件工程 · 计算机科学 2021-11-01 Philipp Samfass , Tobias Weinzierl , Anne Reinarz , Michael Bader

Weakly-Supervised Semantic Segmentation (WSSS) segments objects without a heavy burden of dense annotation. While as a price, generated pseudo-masks exist obvious noisy pixels, which result in sub-optimal segmentation models trained over…

计算机视觉与模式识别 · 计算机科学 2021-12-15 Yi Li , Yiqun Duan , Zhanghui Kuang , Yimin Chen , Wayne Zhang , Xiaomeng Li

In many security and healthcare systems, the detection and diagnosis systems use a sequence of sensors/tests. Each test outputs a prediction of the latent state and carries an inherent cost. However, the correctness of the predictions…

机器学习 · 计算机科学 2019-03-05 Arun Verma , Manjesh K. Hanawal , Csaba Szepesvári , Venkatesh Saligrama

Modern deep learning heavily relies on large labeled datasets, which often comse with high costs in terms of both manual labeling and computational resources. To mitigate these challenges, researchers have explored the use of informative…

机器学习 · 统计学 2023-09-07 Yong Lin , Chen Liu , Chenlu Ye , Qing Lian , Yuan Yao , Tong Zhang

The application of compressive sensing (CS) to structural health monitoring is an emerging research topic. The basic idea in CS is to use a specially-designed wireless sensor to sample signals that are sparse in some basis (e.g. wavelet…

应用统计 · 统计学 2015-03-31 Yong Huang , James L. Beck , Stephen Wu , Hui Li

A distributed consensus algorithm for estimating the maximum value of the initial measurements in a sensor network with communication noise is proposed. In the absence of communication noise, max estimation can be done by updating the state…

系统与控制 · 计算机科学 2016-02-04 Sai Zhang , Cihan Tepedelenlioglu , Mahesh K. Banavar , Andreas Spanias

This paper introduces a novel framework for optimizing observer-based soft sensors through dynamic causality analysis. Traditional approaches to sensor selection often rely on linearized observability indices or statistical correlations…

人工智能 · 计算机科学 2025-09-16 William Farlessyost , Sebastian Oberst , Shweta Singh

In recent years, there has been a growing interest in designing small-footprint yet effective Connectionist Temporal Classification based keyword spotting (CTC-KWS) systems. They are typically deployed on low-resource computing platforms,…

音频与语音处理 · 电气工程与系统科学 2024-12-25 Yu Xi , Haoyu Li , Hao Li , Jiaqi Guo , Xu Li , Wen Ding , Kai Yu

In this paper, we study and analyze cooperative cognitive radio networks with arbitrary number of secondary users (SUs). Each SU is considered a prospective relay for the primary user (PU) besides having its own data transmission demand. We…

网络与互联网体系结构 · 计算机科学 2016-03-22 Mahmoud Ashour , M. Majid Butt , Amr Mohamed , Tamer ElBatt , Marwan Krunz

Disaster relief networks are designed to be adaptable and resilient so to encompass the demands of the emergency service. Cognitive Radio enhanced ad-hoc architecture has been put forward as a candidate to enable such networks. Spectrum…

网络与互联网体系结构 · 计算机科学 2009-12-02 Nuno Pratas , Nicola Marchetti , Neeli Rashmi Prasad , Antonio Rodrigues , Ramjee Prasad