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Reconfigurable intelligent surface (RIS) can significantly enhance the service coverage of Tera-Hertz massive multiple-input multiple-output (MIMO) communication systems. However, obtaining accurate high-dimensional channel state…

信号处理 · 电气工程与系统科学 2022-12-06 Minghui Wu , Zhen Gao , Yang Huang , Zhenyu Xiao , Derrick Wing Kwan Ng , Zhaoyang Zhang

Cognitive radio networks (CRNs) are considered a promising solution for spectrum resources scarcity and efficient channel utilization. In this letter, multi-dimensional analytical Markov model based on reservation channel access scheme and…

信号处理 · 电气工程与系统科学 2019-12-30 Ahmed T. El-Toukhy , Huseyin Arslan

Spectrum sensing and direction of arrival (DOA) estimation have been thoroughly investigated, both separately and as a joint task. Estimating the support of a set of signals and their DOAs is crucial to many signal processing applications,…

信息论 · 计算机科学 2016-04-12 Shahar Stein , Or Yair , Deborah Cohen , Yonina C. Eldar

The proliferation of wireless devices and their ever increasing influence on our day-to-day life is very evident and seems irreplaceable. This exponential growth in demand, both in terms of the number of devices and Quality of Service (QoS)…

网络与互联网体系结构 · 计算机科学 2022-01-25 Jithin Jagannath , Anu Jagannath , Justin Henney , Tyler Gwin , Zackary Kane , Noor Biswas , Andrew Drozd

Hand-crafted spatial features, such as inter-channel intensity difference (IID) and inter-channel phase difference (IPD), play a fundamental role in recent deep learning based dual-microphone speech enhancement (DMSE) systems. However,…

音频与语音处理 · 电气工程与系统科学 2022-05-04 Xinmeng Xu , Rongzhi Gu , Yuexian Zou

Integrated sensing, communication, and computation (ISCC) is emerging as a unified design paradigm for future vehicular networks that require joint environment perception, safety-critical information exchange, and latency-sensitive task…

信息论 · 计算机科学 2026-05-26 Indulekha K. P. , T. G. Venkatesh

Sparse attention as a efficient method can significantly decrease the computation cost, but current sparse attention tend to rely on window self attention which block the global information flow. For this problem, we present Shifted Cross…

计算与语言 · 计算机科学 2023-12-13 Yuxiang Guo

This paper describes a radio architecture for distributed spectrum sharing of multiple channels among secondary users (SUs) in a wide band of frequencies and a localized area. A novel Multichannel Immediate Multiple Access (MIMA) physical…

信息论 · 计算机科学 2017-02-10 Mingming Cai , J. Nicholas Laneman

This paper considers networked sensing in cellular network, where multiple base stations (BSs) first compress their received echo signals from multiple targets and then forward the quantized signals to the central unit (CU) via…

信号处理 · 电气工程与系统科学 2024-09-09 Weifeng Zhu , Shuowen Zhang , Liang Liu

In this paper, we initiate the study of rate-splitting multiple access (RSMA) for a mono-static integrated sensing and communication (ISAC) system, where the dual-functional base station (BS) simultaneously communicates with multiple users…

信息论 · 计算机科学 2024-03-05 Kexin Chen , Yijie Mao , Longfei Yin , Chengcheng Xu , Yang Huang

This paper is focused on code-domain non-orthogonal multiple access (CD-NOMA), which is an emerging paradigm to support massive connectivity for future machine-type wireless networks. We take a comparative approach to study two types of…

信息论 · 计算机科学 2020-09-10 Zilong Liu , Lie-Liang Yang

This paper addresses the design issues of the multi-antenna-based cognitive radio (CR) system that is able to operate concurrently with the licensed primary radio (PR) system. We propose a practical CR transmission strategy consisting of…

信息论 · 计算机科学 2009-05-12 Feifei Gao , Rui Zhang , Ying-Chang Liang , Xiaodong Wang

In this contribution, we consider a two-tiered network and focus on the coexistence between the two tiers at physical layer. We target our efforts on a long term evolution advanced (LTE-A) orthogonal frequency division multiple access…

信息论 · 计算机科学 2013-02-21 Marco Maso , Merouane Debbah , Lorenzo Vangelista

With the development of the 5G and Internet of Things, amounts of wireless devices need to share the limited spectrum resources. Dynamic spectrum access (DSA) is a promising paradigm to remedy the problem of inefficient spectrum utilization…

网络与互联网体系结构 · 计算机科学 2021-06-18 Xiang Tan , Li Zhou , Haijun Wang , Yuli Sun , Haitao Zhao , Boon-Chong Seet , Jibo Wei , Victor C. M. Leung

In this paper, we investigated the downlink transmission problem of a cognitive radio network (CRN) equipped with a novel transmissive reconfigurable intelligent surface (TRIS) transmitter. In order to achieve low power consumption and…

信号处理 · 电气工程与系统科学 2023-05-05 Ziwei Liu , Wen Chen , Zhendong Li , Jinhong Yuan , Qingqing Wu , Kunlun Wang

In this paper, a new technique for cross layer design, based on present Eb/N0 (bit energy per noise density) ratio of the connections and target values of the Quality of Service (QoS) information parameters from MAC layer, is proposed to…

网络与互联网体系结构 · 计算机科学 2012-04-10 Prasun Chowdhury , Iti Saha Misra , Salil K Sanyal

State-of-the-art approaches for the semantic labeling of LiDAR point clouds heavily rely on the use of deep Convolutional Neural Networks (CNNs). However, transferring network architectures across different LiDAR sensor types represents a…

计算机视觉与模式识别 · 计算机科学 2019-07-05 Florian Piewak , Peter Pinggera , Marius Zöllner

In the Cognitive Compressive Sensing (CCS) problem, a Cognitive Receiver (CR) seeks to optimize the reward obtained by sensing an underlying $N$ dimensional random vector, by collecting at most $K$ arbitrary projections of it. The $N$…

信息论 · 计算机科学 2014-01-27 Saeed Bagheri , Anna Scaglione

We investigate cross-layer optimization to route information across distributed wireless body-to-body networks, based on real-life experimental measurements. At the network layer, the best possible route is selected according to channel…

网络与互联网体系结构 · 计算机科学 2019-01-23 Samiya M. Shimly , David B. Smith , Samaneh Movassaghi

Regular perturbation is applied to space-division multiplexing (SDM) on optical fibers and motivates a correlated rotation-and-additive noise (CRAN) model. For S spatial modes, or 2S complex-alphabet channels, the model has 4S(S+1) hidden…

信息论 · 计算机科学 2021-09-28 Francisco Javier García-Gómez , Gerhard Kramer