中文
相关论文

相关论文: Covariance-Based Cooperative Activity Detection fo…

200 篇论文

In this work, we propose a fast and energy-efficient neighbor discovery scheme for proximity-aware networks such as wireless ad hoc networks. Discovery efficiency is accomplished by the use of a special discovery signal that provides random…

信息论 · 计算机科学 2011-12-12 C. Jiang , L. Yang

This paper considers a challenging scenario of machine type communications, where we assume internet of things (IoT) devices send short packets sporadically to an access point (AP) and the devices are not synchronized in the packet level.…

信息论 · 计算机科学 2024-06-12 Yuanyuan Zhang , Zhengdao Yuan , Qinghua Guo , Zhongyong Wang , Jiangtao Xi , Yanguang Yu , Yonghui Li

The effective utilization of unlicensed spectrum is regarded as an important direction to enable the massive access and broad coverage for next-generation wireless local area network (WLAN). Due to the crowded spectrum occupancy and dense…

信号处理 · 电气工程与系统科学 2024-12-17 Xiangyu Pi , Lipeng Zhu , Haobin Mao , Zhenyu Xiao , Xiang-Gen Xia , Rui Zhang

Collaborative spectrum sensing among secondary users (SUs) in cognitive networks is shown to yield a significant performance improvement. However, there exists an inherent trade off between the gains in terms of probability of detection of…

计算机科学与博弈论 · 计算机科学 2016-11-17 Walid Saad , Zhu Han , Merouane Debbah , Are Hjørungnes , Tamer Başar

To maintain high perception performance among connected and autonomous vehicles (CAVs), in this paper, we propose an accuracy-aware and resource-efficient raw-level cooperative sensing and computing scheme among CAVs and road-side…

网络与互联网体系结构 · 计算机科学 2024-03-26 Xuehan Ye , Kaige Qu , Weihua Zhuang , Xuemin Shen

This paper proposes a decentralized passive impedance control scheme for collaborative grasping using under-actuated aerial manipulators (AMs). The AM system is formulated, using a proper coordinate transformation, as an inertially…

机器人学 · 计算机科学 2024-01-12 Jinyeong Jeong , Min Jun Kim

Device activity detection and channel estimation for massive grant-free access under frequency-selective fading have unfortunately been an outstanding problem. This paper aims to address the challenge. Specifically, we present an orthogonal…

信息论 · 计算机科学 2022-01-04 Yuhang Jia , Ying Cui , Wuyang Jiang

This paper introduces a novel approach that enables a number of cognitive radio devices that are observing the availability pattern of a number of primary users(PUs), to cooperate and use \emph{Bayesian nonparametric} techniques to estimate…

信息论 · 计算机科学 2016-11-18 Walid Saad , Zhu Han , H. Vincent Poor , Tamer Başar , Ju Bin Song

This work examines the close interplay between cooperation and adaptation for distributed detection schemes over fully decentralized networks. The combined attributes of cooperation and adaptation are necessary to enable networks of…

信息论 · 计算机科学 2016-11-15 Vincenzo Matta , Paolo Braca , Stefano Marano , Ali H. Sayed

In this paper we design and implement a resource management scheme based on cooperative association, where the STAs can share useful information in order to improve the performance of the association/handoff procedures. The cooperative…

网络与互联网体系结构 · 计算机科学 2012-07-03 George Athanasiou , Leandros Tassiulas

Massive Machine-Type Communications (mMTC) is a key service category in the current generation of wireless networks featuring an extremely high density of energy and resource-limited devices with sparse and sporadic activity patterns. In…

信息论 · 计算机科学 2023-03-14 Jyotish Robin , Elza Erkip

This paper investigates the massive random access for a huge amount of user devices served by a base station (BS) equipped with a massive number of antennas. We consider a grant-free unsourced random access (U-RA) scheme where all users…

信息论 · 计算机科学 2020-09-15 Xinyu Xie , Yongpeng Wu , Junyuan Gao , Wenjun Zhang

Cognitive radio and dynamic spectrum access represent a new paradigm shift in more effective use of limited radio spectrum. One core component behind dynamic spectrum access is the sensing of primary user activity in the shared spectrum.…

信息论 · 计算机科学 2016-11-17 Shunqing Zhang , Tianyu Wu , Vincent K. N. Lau

This paper is concerned with developing a novel distributed Kalman filtering algorithm over wireless sensor networks based on randomized consensus strategy. Compared with the centralized algorithm, distributed filtering techniques require…

系统与控制 · 计算机科学 2018-10-08 Jiahu Qin , Jie Wang , Ling Shi , Yu Kang

The problem of cell association is considered for cellular users present in the field. This has become a challenging problem with the deployment of 5G networks which will share the sub-6 GHz bands with the legacy 4G networks. Instead of…

信号处理 · 电气工程与系统科学 2019-10-31 Yinsong Wang , Hessam Mahdavifar , Kamran Entesari , Shahin Shahrampour

Traditional random access schemes are designed based on the aggregate process of user activation, which is created on the basis of independent activations of the users. However, in Machine-Type Communications (MTC), some users are likely to…

信息论 · 计算机科学 2018-03-12 Anders Ellersgaard Kalør , Osama A. Hanna , Petar Popovski

Base station cooperation is a promising scheme to improve network performance for next generation cellular networks. Up to this point research has focused on station grouping criteria based solely on geographic proximity. However, for the…

网络与互联网体系结构 · 计算机科学 2017-07-11 Luis David Alvarez Corrales , Anastasios Giovanidis , Philippe Martins , Laurent Decreusefond

In this letter, we propose a six-dimensional movable antenna (6DMA)-aided cell-free massive multiple-input multiple-output (MIMO) system to fully exploit its macro spatial diversity, where a set of distributed access points (APs), each…

信息论 · 计算机科学 2024-12-03 Xiaoming Shi , Xiaodan Shao , Beixiong Zheng , Rui Zhang

Mobile devices have been shipped with multiple wireless network interfaces in order to meet their diverse communication and networking demands. In this paper, we propose an A-GPS assisted scheme that discovers the nearest Wi-Fi network…

网络与互联网体系结构 · 计算机科学 2012-01-04 Feng Xia , Wei Zhang , Fangwei Ding , Ruonan Hao

We examine the problem of determining which nodes are neighbors of a given one in a wireless network. We consider an unsupervised network operating on a frequency-flat Gaussian channel, where $K+1$ nodes associate their identities to…

信息论 · 计算机科学 2007-07-13 Daniele Angelosante , Ezio Biglieri , Marco Lops