Results 1 to 10 of about 119 (101)
Full-Duplex Relay with Delayed CSI Elevates the SDoF of the MIMO X Channel [PDF]
Entropy, 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
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MISO Broadcast Channel under Unequal Link Coherence Times and Channel State Information [PDF]
Entropy, 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
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Unified Space–Time-Message Interference Alignment: An End-to-End Learning Approach [PDF]
EntropyThis 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
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Secure Retrospective Interference Alignment [PDF]
Entropy, 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
Block-fading channels with delayed CSIT at finite blocklength [PDF]
2014 IEEE International Symposium on Information Theory, 2014 In many wireless systems, the channel state information at the transmitter (CSIT) can not be learned until after a transmission has taken place and is thereby outdated. In this paper, we study the benefits of delayed CSIT on a block-fading channel at finite blocklength.
Kasper F Trillingsgaard, Petar Popovski
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Linear Degrees of Freedom of the $X$-Channel With Delayed CSIT [PDF]
IEEE Transactions on Information Theory, 2014 We establish the degrees of freedom of the two-user X-channel with delayed channel knowledge at transmitters (i.e., delayed CSIT), assuming linear coding strategies at the transmitters. We derive a new upper bound and characterize the linear degrees of freedom of this network to be 6/5.
Sina Lashgari +2 more
exaly +4 more sources
Transmit Beamforming for MISO Broadcast Channels With Statistical and Delayed CSIT [PDF]
IEEE Transactions on Communications, 2015 This paper focuses on linear beamforming design and power allocation strategy for ergodic rate optimization in a two-user Multiple-Input-Single-Output (MISO) system with statistical and delayed channel state information at the transmitter (CSIT). We propose a transmission strategy, denoted as Statistical Alternative MAT (SAMAT), which exploits both ...
Mingbo Dai, Bruno Clerckx
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Distributed Space–Time Interference Alignment With Moderately Delayed CSIT [PDF]
IEEE Transactions on Wireless Communications, 2015 To appear in IEEE ...
Namyoon Lee +2 more
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Capacity Results for Binary Fading Interference Channels With Delayed CSIT [PDF]
IEEE Transactions on Information Theory, 2014 To study the effect of lack of up-to-date channel state information at the transmitters (CSIT), we consider two-user binary fading interference channels with Delayed-CSIT. We characterize the capacity region for such channels under homogeneous assumption where channel gains have identical and independent distributions across time and space, eliminating
Alireza Vahid +2 more
exaly +3 more sources
Informational bottlenecks in two-unicast wireless networks with delayed CSIT [PDF]
2015 53rd Annual Allerton Conference on Communication, Control, and Computing (Allerton), 2015 In proceedings of the 53rd Annual Allerton Conference on Communication, Control, and ...
Alireza Vahid +2 more
exaly +3 more sources