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Interference alignment is a signaling technique that provides high multiplexing gain in the interference channel. It can be extended to multi-hop interference channels, where relays aid transmission between sources and destinations. In…

Information Theory · Computer Science 2016-11-15 Kien T. Truong , Philippe Sartori , Robert W. Heath

Wi-Fi sensing leveraging plain-text beamforming feedback information (BFI) in multiple-input-multiple-output (MIMO) systems attracts increasing attention. However, due to the implicit relationship between BFI and the channel state…

Signal Processing · Electrical Eng. & Systems 2024-06-11 Xin Li , Jingzhi Hu , Jun Luo

Dynamic subarray achieves a compromise between sum rate and hardware complexity for millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems in which antenna elements are dynamically partitioned to radio frequency (RF)…

Signal Processing · Electrical Eng. & Systems 2019-06-19 Jing Jiang , Yue Yuan , Li Zhen

User mobility in wireless data networks is increasing because of technological advances and the desire for voice and multimedia applications. These applications, however, require fast handoffs between base stations to maintain the quality…

Networking and Internet Architecture · Computer Science 2012-06-18 S. Alagu , T. Meyyappan

The envisioned wireless networks of the future entail the provisioning of massive numbers of connections, heterogeneous data traffic, ultra-high spectral efficiency, and low latency services. This vision is spurring research activities…

Networking and Internet Architecture · Computer Science 2023-09-13 Xuelin Cao , Bo Yang , Chongwen Huang , George C. Alexandropoulos , Chau Yuen , Zhu Han , H. Vincent Poor , Lajos Hanzo

The latest IEEE 802.11 amendments provide support to directional communications in the Millimeter Wave spectrum and, thanks to the wide bandwidth available at such frequencies, makes it possible to wirelessly approach several emergent use…

Networking and Internet Architecture · Computer Science 2021-05-26 Matteo Drago , Tommy Azzino , Mattia Lecci , Andrea Zanella , Michele Zorzi

Reconfigurable intelligent surface (RIS) has been widely discussed as new technology to improve wireless communication performance. Based on the unique design of RIS, its elements can reflect, refract, absorb, or focus the incoming waves…

Signal Processing · Electrical Eng. & Systems 2020-09-03 Salah Eddine Zegrar , Liza Afeef , Huseyin Arslan

SMART NoC, which transmits unconflicted flits to distant processing elements (PEs) in one cycle through the express bypass, is a high-performance NoC design proposed recently. However, if contention occurs, flits with low priority would not…

Hardware Architecture · Computer Science 2020-11-19 Hui Chen , Peng Chen , Jun Zhou , Duong H. K. Luan , Weichen Liu

In this paper, we propose a multi-beam non-orthogonal multiple access (NOMA) scheme for hybrid millimeter wave (mmWave) systems and study its resource allocation. A beam splitting technique is designed to generate multiple analog beams to…

Information Theory · Computer Science 2018-06-14 Zhiqiang Wei , Lou Zhao , Jiajia Guo , Derrick Wing Kwan Ng , Jinhong Yuan

We focus on interference mitigation and energy conservation within a single wireless body area network (WBAN). We adopt two-hop communication scheme supported by the the IEEE 802.15.6 standard (2012). In this paper, we propose a dynamic…

Networking and Internet Architecture · Computer Science 2016-11-03 Mohamad Jaafar Ali , Hassine Moungla , Ahmed Mehaoua , Yong Xu

This paper presents an innovative set of tools to support a methodology for the multichannel interpolation (MCI) of a discrete signal. It is shown that a bandlimited signal $f$ can be exactly reconstructed from finite samples of $g_k$…

Information Theory · Computer Science 2019-04-12 Dong Cheng , Kit Ian Kou

The new technique, multi-frequency imaging (MFI) is developed. In VLBI, Multi-Frequency Imaging (MFI) consists of multi-frequency synthesis (MFS) and multi-frequency analysis (MFA) of the VLBI data obtained from observations on various…

Astrophysics · Physics 2007-05-23 S. Likhachev

In this letter, we study the beamforming design for channel estimation of multi-functional reconfigurable intelligent surface (MF-RIS)-aided multi-user communications that supports simultaneous signal reflection, refraction, and…

Signal Processing · Electrical Eng. & Systems 2025-01-22 Zaihao Pan , Wen Wang , Gaofeng Nie , Ailing Zheng , Wanli Ni

Fluid reconfigurable intelligent surfaces (FRIS) enable joint position and phase reconfigurability by integrating fluid antennas (FA) with conventional reconfigurable intelligent surfaces (RIS). In this paper, we propose a novel FRIS-based…

Information Theory · Computer Science 2026-03-13 Peng Zhang , Jian Dang , Miaowen Wen , Ziyang Liu , Kai-Kit Wong , Chen Zhao , Huaifeng Shi , Zaichen Zhang

We propose a novel algorithm to estimate the channel covariance matrix of a desired user in multiuser massive MIMO systems. The algorithm uses only knowledge of the array response and rough knowledge of the angular support of the incoming…

Signal Processing · Electrical Eng. & Systems 2020-06-15 Renato Luis Garrido Cavalcante , Slawomir Stanczak

As Moore's Law continues to fuel the ability to build ever increasingly complex system-on-chips (SoCs), achieving performance goals is rising as a critical challenge to completing designs. In particular, the system interconnect must…

Hardware Architecture · Computer Science 2011-11-09 Wolf-Dietrich Weber , Joe Chou , Ian Swarbrick , Drew Wingard

Effective risk management solutions become absolutely crucial when financial markets embrace distributed technology and decentralized financing (DeFi). This study offers a thorough survey and comparative analysis of the integration of…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-03-25 Akaash Vishal Hazarika , Mahak Shah , Swapnil Patil , Pradyumna Shukla

A radar and communication integration (RCI) system has great flexibility in allocating antenna resources to guarantee both radar and communication performance. This paper considers the array allocation problems for multiple target…

Signal Processing · Electrical Eng. & Systems 2020-10-09 Zhenkai Zhang , Hamid Esmaeili Najafabadi , Henry Leung

In a multi-service network such as ATM, adaptive data services(such as ABR) share the bandwidth unused by higher priority services. The network indicates to the ABR sources the fair and efficient rates at which they should transmit to…

Networking and Internet Architecture · Computer Science 2016-03-29 Sonia Fahmy , Raj Jain , Shivkumar Kalyanaraman , Rohit Goyal , Bobby Vandalore

A new method is introduced to obtain a strong signal by the interference of weak signals in noisy channels. The method is based on the interference of 1/f noise from parallel channels. One realization of stochastic interference is the…

Chaotic Dynamics · Physics 2009-11-07 K. Svozil , D. Felix , K. Ehrenberger