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Full-Duplex Relay with Delayed CSI Elevates the SDoF of the MIMO X Channel [PDF]

open access: yesEntropy, 2021
In this article, the sum secure degrees-of-freedom (SDoF) of the multiple-input multiple-output (MIMO) X channel with confidential messages (XCCM) and arbitrary antenna configurations is studied, where there is no channel state information (CSI) at two ...
Tong Zhang   +3 more
doaj   +2 more sources

The DoF region of two‐user MIMO broadcast channel with delayed imperfect‐quality CSIT

open access: yesElectronics Letters, 2022
The channel state information at the transmitter (CSIT) play an important role in the performance of wireless networks. The CSIT model can be delayed and imperfect‐quality, since the feedback link has a delay and the channel state information (CSI ...
Tong Zhang
doaj   +2 more sources

MISO Broadcast Channel under Unequal Link Coherence Times and Channel State Information [PDF]

open access: yesEntropy, 2020
The broadcast channel may experience unequal link coherence times due to a number of factors including variation in node mobility or local scattering conditions.
Mohamed Fadel Shady, Aria Nosratinia
doaj   +2 more sources

Unified Space–Time-Message Interference Alignment: An End-to-End Learning Approach [PDF]

open access: yesEntropy
This paper investigates the performance of a multi-user multiple-input single-output (MU-MISO) broadcast channel under the practical constraints of imperfect, delayed, and quantized channel state information at the transmitter (CSIT).
Elaheh Sadeghabadi, Steven Blostein
doaj   +2 more sources

Secure Retrospective Interference Alignment [PDF]

open access: yesEntropy, 2019
In this paper, the K-user interference channel with secrecy constraints is considered with delayed channel state information at transmitters (CSIT). We propose a novel secure retrospective interference alignment scheme in which the transmitters carefully
Mohamed Seif, Ravi Tandon, Ming Li
doaj   +2 more sources

Correlation analysis of olfactory function with cognitive function and motor symptoms in patients with Parkinson's disease

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2021
Objective To investigate the correlation of olfactory function and cognitive function and motor symptoms in patients with primary Parkinson's disease (PD).
CHEN Xing   +7 more
doaj   +1 more source

A Novel Tri-Staged RIA Scheme for Cooperative Cell Edge Users in a Multi-Cellular MIMO IMAC

open access: yesIEEE Access, 2022
In the real world of wireless communication systems, one solution to the practical limitation of interference alignment in terms of global channel state information at the transmitter (CSIT) requirement is to consider a linear precoding approach that ...
Vivek Menon U, Poongundran Selvaprabhu
doaj   +1 more source

Cache-Aided Retrospective Interference Alignment in SISO X Wireless Networks

open access: yesIEEE Access, 2020
In this paper, one class of single-input single-output (SISO) X networks with cache at both transmitters and receivers is considered. Specifically, the X networks consist of two transmitters and K receivers.
Wei Liu, Chunyu Zhang
doaj   +1 more source

An Overview of Physical Layer Security in Wireless Communication Systems With CSIT Uncertainty

open access: yesIEEE Access, 2016
The concept of physical layer security builds on the pivotal idea of turning the channel's imperfections, such as noise and fading, into a source of security.
Amal Hyadi   +2 more
doaj   +1 more source

A Survey on Robust Interference Management in Wireless Networks

open access: yesEntropy, 2017
Recent advances in the characterization of fundamental limits on interference management in wireless networks and the discovery of new communication schemes on how to handle interference led to a better understanding towards the capacity of such networks.
Jaber Kakar, Aydin Sezgin
doaj   +1 more source

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