Results 11 to 20 of about 375,907 (328)

End-to-End Learning-Based Framework for Amplify-and-Forward Relay Networks

open access: yesIEEE Access, 2021
We study end-to-end learning-based frameworks for amplify-and-forward (AF) relay networks, with and without the channel state information (CSI) knowledge. The designed framework resembles an autoencoder (AE) where all the components of the neural network
Ankit Gupta, Mathini Sellathurai
doaj   +1 more source

Optimal Amplify-and-Forward Precode and Relay Amplifying Matrices [PDF]

open access: yes2013 IEEE 77th Vehicular Technology Conference (VTC Spring), 2013
A cooperative amplify-and-forward (AF) wireless relay scheme consisting of M sources, N relays, and L destinations all equipped with a single antenna is studied in this paper. The main objective is to design jointly and iteratively the closed-form of minimum mean square error (MMSE)-based source precode and relay amplifying matrices under a jamming ...
Kim, Hyunggi   +5 more
openaire   +2 more sources

Reliable Over-the-Air Computation by Amplify-and-Forward Based Relay

open access: yesIEEE Access, 2021
In typical sensor networks, data collection and processing are separated. A sink collects data from all nodes sequentially, which is very time consuming.
Suhua Tang   +3 more
doaj   +1 more source

Sequential slotted amplify-decode-and-forward [PDF]

open access: yes2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
In this paper, we propose a novel slotted hybrid cooperative protocol named the sequential slotted amplify-decode-and-forward (SADF) protocol and evaluate its performance in terms of diversity-multiplexing trade-off (DMT). The relays between the source and destination are divided into two different groups and each relay either amplifies or decodes the ...
Yiyong Chin   +2 more
openaire   +2 more sources

EM based channel estimation in an amplify-and-forward relaying network [PDF]

open access: yes, 2010
Cooperative communication offers a way to obtain spatial diversity in a wireless network without increasing hardware demands. The different cooperation protocols proposed in the literature [1] are often studied under the assumption that all channel state
Aerts, Nico   +3 more
core   +3 more sources

Non-linear energy harvesting based power splitting relaying in full-duplex AF and DF relaying networks: system performance analysis [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2020
Wireless power transfer is considered as a novel solution for energy harvesting in wireless communication networks. In this paper, the system performance of the non-linear energy harvesting based power splitting relaying in the full-duplex relaying ...
Tran Tin Phu   +5 more
doaj   +1 more source

Perbandingan Kinerja Non-Orthogonal dan Orthogonal Amplify and Forward pada Two-Way Cooperative WLAN

open access: yesJurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017
Nowadays, the advancement of Wireless Local Area Network (WLAN) technology has developed very rapidly because it is very practical and has effective mobility level. In practice, there is a major problem in wireless communications systems, which is fading.
Kurnia Rizki, Nasaruddin, Ramzi Adriman
doaj   +1 more source

Performance Comparison of Relay-Based Covert Communications: DF, CF and AF

open access: yesSensors, 2023
In this paper, we investigate the performance of covert communications in different types of a relay system: decode-and-forward (DF), compress-and-forward (CF) and amplify-and-forward (AF).
Jihwan Moon
doaj   +1 more source

Amplified Hopf Bifurcations in Feed-Forward Networks [PDF]

open access: yesSIAM Journal on Applied Dynamical Systems, 2013
In a previous paper, the authors developed a method for computing normal forms of dynamical systems with a coupled cell network structure. We now apply this theory to one-parameter families of homogeneous feed-forward chains with 2-dimensional cells. Our main result is that Hopf bifurcations in such families generically generate branches of periodic ...
Bob W. Rink, Jan A. Sanders
openaire   +3 more sources

Cooperative Spectrum Sensing Schemes with the Interference Constraint in Cognitive Radio Networks

open access: yesSensors, 2014
In this paper, we propose cooperative spectrum sensing schemes, called decode-and-forward cooperative spectrum sensing (DF-CSS) scheme and amplify-and-forward cooperative spectrum sensing (AF-CSS) scheme, in cognitive radio networks.
Tri-Nhu Do, Beongku An
doaj   +1 more source

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