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The two-user multiple-input multiple-output (MIMO) fast-fading interference channel (IC) with an arbitrary number of antennas at each of the four terminals is studied under the settings of Shannon feedback, limited Shannon feedback, and…

Information Theory · Computer Science 2011-11-01 Chinmay S. Vaze , Mahesh K. Varanasi

Due to its ability of significantly improving data rate, intelligent reflecting surface (IRS) will be a potential crucial technique for the future generation wireless networks like 6G. In this paper, we will focus on the analysis of degree…

Signal Processing · Electrical Eng. & Systems 2025-08-04 Jinbing Jiang , Feng Shu , Xuehui Wang , Ke Yang , Chong Shen , Qi Zhang , Dongming Wang , Jiangzhou Wang

We study the generalized degrees of freedom (gDoF) of the block-fading noncoherent diamond (parallel relay) wireless network with asymmetric distributions of link strengths, and a coherence time of T symbol duration. We first derive an…

Information Theory · Computer Science 2020-02-20 Joyson Sebastian , Suhas Diggavi

This paper investigates the degrees of freedom of the interference channel in the presence of a dedicated MIMO relay. The relay is used to manage the interference at the receivers. It is assumed that all nodes including the relay have…

Information Theory · Computer Science 2011-12-30 Ramy Abdallah Tannious , Aria Nosratinia

The capacity region of the $K$-user Gaussian interference channel (GIC) is a long-standing open problem and even capacity outer bounds are little known in general. A significant progress on degrees-of-freedom (DoF) analysis, a first-order…

Information Theory · Computer Science 2017-01-24 Junyoung Nam

Recent experimental studies have shed light on the intriguing possibility that ion channels exhibit cooperative behaviour. However, a comprehensive understanding of such cooperativity remains elusive, primarily due to limitations in…

Methodology · Statistics 2026-05-08 Robin Requadt , Manuel Fink , Patrick Kubica , Claudia Steinem , Axel Munk , Housen Li

This paper studies the K-user Gaussian interference channel with secrecy constraints. Two distinct network models, namely the interference channel with confidential messages and the one with an external eavesdropper, are analyzed. Using…

Information Theory · Computer Science 2016-11-15 Onur Ozan Koyluoglu , Hesham El Gamal , Lifeng Lai , H. Vincent Poor

In this paper, the degrees of freedom (DoF) regions of constant coefficient multiple antenna interference channels are investigated. First, we consider a $K$-user Gaussian interference channel with $M_k$ antennas at transmitter $k$, $1\le…

Information Theory · Computer Science 2014-02-18 Mahdi Zamanighomi , Zhengdao Wang

We study the Degrees-of-Freedom (DoF) in a wireless setting in which K Transmitters (TXs) aim at jointly serving K users. The performance is studied when the TXs are faced with a distributed Channel State Information (CSI) configuration in…

Information Theory · Computer Science 2020-05-14 Antonio Bazco-Nogueras , Paul de Kerret , David Gesbert , Nicolas Gresset

This paper investigates the fundamental performance limits of the two-user interference channel in the presence of an external eavesdropper. In this setting, we construct an inner bound, to the secrecy capacity region, based on the idea of…

Information Theory · Computer Science 2015-03-13 O. Ozan Koyluoglu , Hesham El Gamal

An interference regime enforcing rate maximization scheme is proposed to maximize the achievable ergodic sum-rate of the parallel Gaussian interference channels by enforcing very strong interference at receivers through power allocation…

Information Theory · Computer Science 2019-01-15 Tugba Erpek , Sennur Ulukus , Yalin E. Sagduyu

The two-user Gaussian interference channel with a shared out-of-band relay is considered. The relay observes a linear combination of the source signals and broadcasts a common message to the two destinations, through a perfect link of fixed…

Information Theory · Computer Science 2016-11-18 Peyman Razaghi , Song Nam Hong. Lei Zhou , Wei Yu , Giuseppe Caire

This paper develops a new distributed power control scheme for a power splitting-based interference channel (IFC) with simultaneous wireless information and power transfer (SWIPT). The considered IFC consists of multiple source-destination…

Information Theory · Computer Science 2016-11-17 He Chen , Yuanye Ma , Zihuai Lin , Yonghui Li , Branka Vucetic

Mobile radar networks, such as autonomous driving systems, are subject to the severe challenge of mutual interference. Despite the inborn interference-proof capability in frequency modulation continuous waveform (FMCW) radar, interference…

Signal Processing · Electrical Eng. & Systems 2020-11-18 Husheng Li

Interference Alignment is a new solution to over- come the problem of interference in multiuser wireless com- munication systems. Recently, the Compute-and-Forward (CF) transform has been proposed to approximate the capacity of K- user…

Information Theory · Computer Science 2014-10-09 Ehsan Ebrahimi Khaleghi , Jean-Claude Belfiore

Real interference alignment is efficient in breaking-up a one-dimensional space over time-invariant channels into fractional dimensions. As such, multiple symbols can be simultaneously transmitted with fractional degrees-of-freedom (DoF).…

Information Theory · Computer Science 2016-08-09 Mohaned Chraiti , Ali Ghrayeb , Chadi Assi

The best outer bound on the capacity region of the two-user Gaussian Interference Channel (GIC) is known to be the intersection of regions of various bounds including genie-aided outer bounds, in which a genie provides noisy input signals…

Information Theory · Computer Science 2017-04-20 Junyoung Nam

In this paper, we first present an outer bound for a general interference channel with a cognitive relay, i.e., a relay that has non-causal knowledge of both independent messages transmitted in the interference channel. This outer bound…

Information Theory · Computer Science 2015-03-17 Stefano Rini , Daniela Tuninetti , Natasha Devroye

In this paper, we consider a general distributed estimation problem in relay-assisted sensor networks by taking into account time-varying asymmetric communications, fading channels and intermittent measurements. Motivated by centralized…

Information Theory · Computer Science 2016-04-20 Shanying Zhu , Yeng Chai Soh , Lihua Xie

Successive Interference Cancellation (SIC) is a powerful technique for managing interference in wireless networks, yet its optimal deployment in decentralized environments remains a challenge. This study investigates joint power and rate…

Information Theory · Computer Science 2026-04-15 D. Garrido , M. M. Vasconcelos , B. Peleato