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Low-altitude wireless networks are increasingly vital for the low-altitude economy, enabling wireless coverage in high-mobility and hard-to-reach environments. However, providing reliable connectivity to sparsely distributed aerial users in…

Information Theory · Computer Science 2025-12-16 Tian Shi , Wenkun Wen , Peiran Wu , Minghua Xia

Visible light communications (VLC) is an emerging technology that enables broadband data rates using the visible spectrum. VLC beam steering has been studied in the literature to track mobile users and to improve coverage. However, in some…

Networking and Internet Architecture · Computer Science 2018-05-29 Yusuf Said Eroglu , Chethan Kumar Anjinappa , Ismail Guvenc , Nezih Pala

Ultra reliable and low latency communication (URLLC) is a newly introduced service category in 5G to support delay-sensitive applications. In order to support this new service category, 3rd Generation Partnership Project (3GPP) sets an…

Information Theory · Computer Science 2018-08-02 Hyoungju Ji , Sunho Park , Byonghyo Shim

After the great success of Vision Transformer variants (ViTs) in computer vision, it has also demonstrated great potential in domain adaptive semantic segmentation. Unfortunately, straightforwardly applying local ViTs in domain adaptive…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Runfa Chen , Yu Rong , Shangmin Guo , Jiaqi Han , Fuchun Sun , Tingyang Xu , Wenbing Huang

In recent years, there has been a growing emphasis on compressing large pre-trained transformer models for resource-constrained devices. However, traditional pruning methods often leave the embedding layer untouched, leading to model…

Machine Learning · Computer Science 2024-06-13 Oshin Dutta , Ritvik Gupta , Sumeet Agarwal

Extra large-scale multiple-input multiple-output (XL-MIMO) is a key technology for future wireless communication systems. This paper considers the effects of visibility region (VR) at the base station (BS) in a non-stationary multi-user…

Information Theory · Computer Science 2024-05-31 Jun Zhang , Jiacheng Lu , Jingjing Zhang , Yu Han , Jue Wang , Shi Jin

In this paper, the problem of channel estimation for LTE Downlink system in the environment of high mobility presenting non-Gaussian impulse noise interfering with reference signals is faced. The estimation of the frequency selective time…

Information Theory · Computer Science 2014-12-30 Anis Charrada , Abdelaziz Samet

The subgraph-centric programming model is a promising approach and has been applied in many state-of-the-art distributed graph computing frameworks. However, traditional graph partition algorithms have significant difficulties in processing…

Distributed, Parallel, and Cluster Computing · Computer Science 2021-07-08 Shuai Zhang , Zite Jiang , Xingzhong Hou , Zhen Guan , Mengting Yuan , Haihang You

Digital backpropagation (DBP) is one of the most effective techniques for compensating nonlinear distortions in coherent optical fiber communication systems. However, its practical application to wideband transmission remains limited by…

This paper considers the multiuser multiple-input multiple-output (MIMO) broadcast channel. We consider the case where the multiple transmit antennas are used to deliver independent data streams to multiple users via vector perturbation. We…

Information Theory · Computer Science 2016-11-18 Adeel Razi , Daniel J. Ryan , Iain B. Collings , Jinhong Yuan

While network densification is considered an important solution to cater the ever-increasing capacity demand, its effect on the handover (HO) rate is overlooked. In dense 5G networks, HO delays may neutralize or even negate the gains…

Networking and Internet Architecture · Computer Science 2016-09-09 Rabe Arshad , Sameh Sorour , Hesham Elsawy , Tareq Y. Al-Naffouri , Mohamed-Slim Alouini

Omnidirectional applications are immersive and highly interactive, which can improve the efficiency of remote collaborative work among factory workers. The transmission of omnidirectional video (OV) is the most important step in…

Multimedia · Computer Science 2020-03-24 Tao Guo , Xikang Jiang , Bin Xiang , Lin Zhang

In this paper, we investigate the problem of power control for streaming variable-bit-rate (VBR) videos in a device-to-device (D2D) wireless network. A VBR video traffic model that considers video frame sizes and playout buffers at the…

Networking and Internet Architecture · Computer Science 2018-02-16 Chuang Ye , M. Cenk Gursoy , Senem Velipasalar

We present the design and implementation of WaveFlex, the first smart surface that enhances Private LTE/5G networks operating under the shared-license framework in the Citizens Broadband Radio Service frequency band. WaveFlex works in the…

Networking and Internet Architecture · Computer Science 2023-10-19 Fan Yi , Kun Woo Cho , Yaxiong Xie , Kyle Jamieson

We propose a semi-supervised network for wide-angle portraits correction. Wide-angle images often suffer from skew and distortion affected by perspective distortion, especially noticeable at the face regions. Previous deep learning based…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Fushun Zhu , Shan Zhao , Peng Wang , Hao Wang , Hua Yan , Shuaicheng Liu

In this paper, we investigate the design of a pilot spoofing attack (PSA) carried out by multiple single-antenna eavesdroppers (Eves) in a downlink time-division duplex (TDD) system, where a multiple antenna base station (BS) transmits…

Information Theory · Computer Science 2018-07-25 Ke-Wen Huang , Hui-Ming Wang , Yongpeng Wu , Robert Schober

Employing large-scale pre-trained model CLIP to conduct video-text retrieval task (VTR) has become a new trend, which exceeds previous VTR methods. Though, due to the heterogeneity of structures and contents between video and text, previous…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Xing Cheng , Hezheng Lin , Xiangyu Wu , Fan Yang , Dong Shen

Recently, HTTP streaming has become very popular for delivering video over the Internet. For adaptivity, a provider should generate multiple versions of a video as well as the related metadata. Various adaptation methods have been proposed…

Multimedia · Computer Science 2015-11-10 Hung. T Le , Hai N. Nguyen , Nam Pham Ngoc , Anh T. Pham , Truong Cong Thang

This paper introduces Memory-limited Online Subspace Estimation Scheme (MOSES) for both estimating the principal components of streaming data and reducing its dimension. More specifically, in various applications such as sensor networks,…

Information Theory · Computer Science 2021-02-12 Armin Eftekhari , Raphael A. Hauser , Andreas Grammenos

Video streaming today accounts for up to 55\% of mobile traffic. In this paper, we explore streaming videos encoded using Scalable Video Coding scheme (SVC) over highly variable bandwidth conditions such as cellular networks. SVC's unique…

Networking and Internet Architecture · Computer Science 2018-06-14 Anis Elgabli , Vaneet Aggarwal , Shuai Hao , Feng Qian , Subhabrata Sen