Amplify-and-Forward Cooperative Diversity for Green UWB-Based WBSNs [PDF]
The Scientific World Journal, 2013 This paper proposes a novel green cooperative diversity technique based on suboptimal template-based ultra-wideband (UWB) wireless body sensor networks (WBSNs) using amplify-and-forward (AF) relays.
Heba Shaban, Mohamad Abou El-Nasr
doaj +4 more sources
Joint Resource Optimization for Orthogonal Frequency Division Multiplexing Based Cognitive Amplify and Forward Relaying Networks [PDF]
Sensors, 2020 This paper investigates two resource allocation problems in cognitive relaying networks where both secondary network and primary network coexist in the same frequency band and adopt orthogonal frequency division multiplexing (OFDM) technology.
Dong Qin, Tianqing Zhou
doaj +2 more sources
Amplify-and-forward in wireless relay networks [PDF]
2011 IEEE Information Theory Workshop, 2011 Minor revision: fixed a typo in eqn. reference, changed the formatting.
Agnihotri, Samar +2 more
openaire +3 more sources
Grassmannian beamforming for MIMO amplify-and-forward relaying [PDF]
IEEE Journal on Selected Areas in Communications, 2008 In this paper, we derive the optimal transmitter/ receiver beamforming vectors and relay weighting matrix for the multiple-input multiple-output amplify-and-forward relay channel. The analysis is accomplished in two steps. In the first step, the direct link between the transmitter (Tx) and receiver (Rx) is ignored and we show that the transmitter and ...
Khoshnevis, Behrouz +2 more
openaire +5 more sources
Sensors, 2021 Millimeter-Wave (mmWave) bands are receiving enormous attention in 5G mobile communications, due to the capability to provide a multi-gigabit transmission rate. In this paper, a two-hop architecture for 5G communications with the capacity to support high
Randy Verdecia-Peña, José I. Alonso
doaj +1 more source
End-to-End Learning-Based Framework for Amplify-and-Forward Relay Networks
IEEE 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
Reliable Over-the-Air Computation by Amplify-and-Forward Based Relay
IEEE 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
Non-linear energy harvesting based power splitting relaying in full-duplex AF and DF relaying networks: system performance analysis [PDF]
Proceedings 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
Jurnal 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
Sensors, 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