Results 71 to 80 of about 140,869 (184)

Power Allocation in Two-Hop Amplify-and-Forward MIMO Relay Systems with QoS requirements

, 2011
The problem of minimizing the total power consumption while satisfying different quality-of-service (QoS) requirements in a two-hop multiple-input multiple-output network with a single non-regenerative relay is considered. As shown by Y. Rong in [1], the
D'Amico, Antonio A., Sanguinetti, Luca
core   +1 more source

SINR Maximizing Beamforming Schemes for the Full Duplex Amplify-and-Forward Relay Channel

IEEE Access, 2017
We propose signal-to-interference-plus-noise power ratio (SINR) maximizing rank one beamforming schemes for the full-duplex (FD) relay systems. The non-regenerative amplify and forward (AaF) relay is considered with multiple transmit antennas and ...
Duckdong Hwang, Janghoon Yang, Sung Sik Nam   +2 more
doaj   +1 more source

Towards the Optimal Amplify-and-Forward Cooperative Diversity Scheme

, 2006
In a slow fading channel, how to find a cooperative diversity scheme that achieves the transmit diversity bound is still an open problem. In fact, all previously proposed amplify-and-forward (AF) and decode-and-forward (DF) schemes do not improve with ...
Belfiore, Jean-Claude, Yang, Sheng
core   +3 more sources

EMD-Based Amplify Quantized and Forward Cooperative Relaying Technique for Wireless Communication System

ABUAD Journal of Engineering Research and Development
Wireless communication system is crucial to telecommunications infrastructure and has played an essential role in national growth. However, the system's performance is hindered by multipath propagation, which has negatively impact in its performance ...
Samson Iyanda OJO, James Oluwatomisin Oladapo, Robert Oluwayimika Abolade, Isaac Adewale Ojedokun, Oluwatobi Omolola Oyedokun   +4 more
doaj   +1 more source

Covert Communications in a Hybrid DF/AF Relay System

Sensors
In this paper, we study covert communications in a hybrid decode-and-forward (DF)/ amplify-and-forward (AF) relay system. The considered relay in normal operation forwards messages from a source node to a destination node in either DF or AF mode on ...
Jihwan Moon
doaj   +1 more source

Efficient Simulation of the Outage Probability of Multihop Systems

IEEE Photonics Journal, 2017
In this paper, we present an efficient importance sampling estimator for the evaluation of the outage probability of multihop systems with amplify-and-forward channel state-information-assisted. The proposed estimator is endowed with the bounded relative
Chaouki Ben Issaid, Mohamed-Slim Alouini, Raul Tempone   +2 more
doaj   +1 more source

Cooperative Terrestrial-Underwater Wireless Optical Links by Using an Amplify-and-Forward Strategy. [PDF]

Sensors (Basel), 2022
Jurado-Navas A, Álvarez-Roa C, Álvarez-Roa M, Castillo-Vázquez M.   +3 more
europepmc   +1 more source

Decision Feedback Modulation Recognition with Channel Estimation for Amplify and Forward Two-Path Consecutive Relaying Systems. [PDF]

Sensors (Basel), 2022
Marey M, Esmail MA, Mostafa H.
europepmc   +1 more source

Power Scaling Laws of Massive MIMO Full-Duplex Relaying With Hardware Impairments

IEEE Access, 2018
This paper considers a massive MIMO full-duplex relaying (FDR) system, in which multiple single-antenna sources simultaneously communicate with multiple single-antenna destinations using a single relay that is equipped with Ntx transmit antennas and Nrx ...
Si-Nian Jin, Dian-Wu Yue, Ha H. Nguyen
doaj   +1 more source