Results 1 to 10 of about 371,307 (181)
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
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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
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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
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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
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Energy Efficiency Analysis in Amplify-And-Forward and Decode-And-Forward Cooperative Networks [PDF]
2010 IEEE Wireless Communication and Networking Conference, 2010 In this paper, we have studied the energy efficiency of cooperative networks operating in either the fixed Amplifyand- Forward (AF) or the selective Decode-and-Forward (DF) mode. We consider the optimization of the M-ary quadrature amplitude modulation (MQAM) constellation size to minimize the bit energy consumption under given bit error rate (BER ...
Chen, Qing, Gursoy, Mustafa Cenk
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On Amplify-and-Forward Relaying Over Hyper-Rayleigh Fading Channels [PDF]
Radioengineering, 2014 Relayed transmission holds promise for the next generation of wireless communication systems due to the performance gains it can provide over non-cooperative systems.
S. H. Alvi, S. Wyne
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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
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Optimal Amplify-and-Forward Precode and Relay Amplifying Matrices [PDF]
2013 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
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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
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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
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