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Base stations with a large number of transmit antennas have the potential to serve a large number of users simultaneously at higher rates. They also promise a lower power consumption due to coherent combining at the receiver. However, the…

Information Theory · Computer Science 2013-07-17 Narayanan Krishnan , Roy D. Yates , Narayan B. Mandayam

In underwater acoustic (UWA) random access communication networks with multiple users and data packet transmissions, the packet collisions are the main cause of the network performance degradation. The aim of this paper is to investigate…

Signal Processing · Electrical Eng. & Systems 2025-01-10 Yuriy Zakharov , Lu Shen , Benjamin Henson , Nils Morozs , Paul D. Mitchell

In this study, we analyze index modulation (IM) based on circularly-shifted chirps (CSCs) for dual-function radar & communication (DFRC) systems. We develop a maximum likelihood (ML) range estimator that considers multiple scatters. To…

Signal Processing · Electrical Eng. & Systems 2020-10-08 Safi Shams Muhtasimul Hoque , Alphan Sahin

The constructive interference concept in the downlink of multiple-antenna systems is addressed in this paper. The concept of the joint exploitation of the channel state information (CSI) and data information (DI) is discussed. Using…

Information Theory · Computer Science 2015-04-28 Maha Alodeh , Symeon Chatzinotas , Bjorn Ottersten

It has been shown that the coherent detection of LoRa signals only provides marginal gains of around 0.7 dB on the additive white Gaussian noise (AWGN) channel. However, ALOHA-based massive Internet of Things systems, including LoRa, often…

Signal Processing · Electrical Eng. & Systems 2020-10-02 Orion Afisiadis , Sitian Li , Andreas Burg , Alexios Balatsoukas-Stimming

Single-antenna full-duplex communication technology has the potential to substantially increase spectral efficiency. However, limited propagation domain cancellation of single-antenna system results in a higher impact of receiver chain…

Signal Processing · Electrical Eng. & Systems 2019-06-19 Md Atiqul Islam , Besma Smida

A simple method is presented for removing the amplitude, frequency and phase modulations from the Laser Interferometer Space Antenna (LISA) data stream for sources at any sky location. When combined with an excess power trigger or the fast…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Neil J. Cornish

Sensing will be an important service of future wireless networks to assist innovative applications such as autonomous driving and environment monitoring. Perceptive mobile networks (PMNs) were proposed to add sensing capability to current…

Information Theory · Computer Science 2023-04-20 Lei Xie , Shenghui Song , Khaled B. Letaief

In this paper, we study a multi-user multi-relay interference-channel network, where energy-constrained relays harvest energy from sources' radio frequency (RF) signals and use the harvested energy to forward the information to…

Information Theory · Computer Science 2017-05-24 Man Chu , Biao He , Xuewen Liao , Zhenzhen Gao , Shihua Zhu

Autonomous driving is reshaping the way humans travel, with millimeter wave (mmWave) radar playing a crucial role in this transformation to enabe vehicle-to-everything (V2X). Although chirp is widely used in mmWave radar systems for its…

Signal Processing · Electrical Eng. & Systems 2025-05-23 Zhuoran Li , Shufeng Tan , Zhen Gao , Yi Tao , Zhonghuai Wu , Zhongxiang Li , Chun Hu , Dezhi Zheng

In this paper, we study slotted Spread Spectrum Aloha with Successive Interference Cancellation at the receiver over a Gaussian channel. We consider a decentralized power control setting in which each user chooses its transmit power…

Information Theory · Computer Science 2016-11-16 Francisco Lázaro

In this paper, we study the feasibility of coupling the PN ranging with filtered high-order modulations, and investigate the simultaneous demodulation of a high-rate telemetry stream while tracking the PN ranging sequence. Accordingly, we…

Information Theory · Computer Science 2021-04-30 Barbara Ripani , Andrea Modenini , Roberto Garello , Gabriel Maiolini Capez , Guido Montorsi

In many sensing (viz., radio astronomy) and radar applications, the received signal of interest (SOI) exhibits a significantly wider bandwidth or weaker power than the interference signal, rendering it indistinguishable from the background…

Signal Processing · Electrical Eng. & Systems 2025-12-23 Xinrui Li , R. Michael Buehrer

An over-the-air (OTA) experimental evaluation of concurrent 5G New Radio (5G NR) and Wi-Fi transmission using successive interference cancellation (SIC) in a shielded-box environment is presented. A USRP is used as the receiver, which…

Signal Processing · Electrical Eng. & Systems 2026-05-27 Mir Lodro , Francesco Raimondo , Geoffrey S. Hilton , Mark A. Beach , Andrew C. M. Austin

We propose a novel multi-agent reinforcement learning (RL) approach for inter-cell interference mitigation, in which agents selectively share their experiences with other agents. Each base station is equipped with an agent, which receives…

Machine Learning · Computer Science 2025-01-28 Madan Dahal , Mojtaba Vaezi

The tremendous capacity gains promised by space division multiple access (SDMA) depend critically on the accuracy of the transmit channel state information. In the broadcast channel, even without any network interference, it is known that…

Information Theory · Computer Science 2016-11-17 Marios Kountouris , Jeffrey G. Andrews

The recent commercial trends towards using smaller dish antennas for satellite receivers, and the growing density of broadcasting satellites, necessitate the application of robust adjacent satellite interference (ASI) cancellation schemes.…

Information Theory · Computer Science 2014-04-29 Zohair Abu-Shaban , Hani Mehrpouyan , Bhavani Shankar M. R. , Bjorn Ottersten

Modern random access protocols are emerging as an efficient yet simple solution for arising internet of things (IoT) applications in upcoming beyond-5G systems. In this context, both terrestrial and non-terrestrial scenarios can benefit…

Information Theory · Computer Science 2019-06-06 Andrea Munari , Federico Clazzer

Backscatter communication holds potential for ubiquitous and low-cost connectivity among low-power IoT devices. To avoid interference between the carrier signal and the backscatter signal, recent works propose a frequency-shifting technique…

Networking and Internet Architecture · Computer Science 2022-10-03 Xiuzhen Guo , Longfei Shangguan , Yuan He , Jia Zhang , Haotian Jiang , Awais Ahmad Siddiqi , Yunhao Liu

This paper tackles the problem of the simultaneous interference among the multiple users in the downlink of a wireless multiantenna system. In order to exploit the multiuser interference and transform it into useful power at the receiver…

Signal Processing · Electrical Eng. & Systems 2020-11-10 Maha Alodeh , Björn Ottersten