Results 41 to 50 of about 54,061 (146)

Auction-Based Secondary Relay Selection on Overlay Spectrum Sharing in Hybrid Satellite–Terrestrial Sensor Networks

Sensors, 2019
In this paper, we investigate the auction-based secondary relay selection on overlay spectrum sharing in hybrid satellite–terrestrial sensor networks (HSTSNs), where both the decode-and-forward (DF) and amplify-and-forward (AF) relay protocols are ...
Xiaokai Zhang, Bangning Zhang, Kang An, Zhuyun Chen, Daoxing Guo   +4 more
doaj   +1 more source

Secure Transmission in Amplify-and-Forward Diamond Networks with a Single Eavesdropper

, 2015
Unicast communication over a network of $M$-parallel relays in the presence of an eavesdropper is considered. The relay nodes, operating under individual power constraints, amplify and forward the signals received at their inputs.
Agnihotri, Samar, Kuri, Joy, Sarma, Siddhartha   +2 more
core   +1 more source

Performance Analysis of Best Relaying Protocol Selection with Interferences at Relays [PDF]

, 2014
In this paper, we investigate the performance of selecting the best protocol between amplify and forward (AF) and decode and forward (DF) in multiple relay networks with multiple interferences at relays. In the selection scheme, the best protocol between
Adam, E. E. B., Haruna, R., Mohammed, A. A., Yu, Li   +3 more
core   +1 more source

Study of Gaussian Relay Channels with Correlated Noises

, 2010
In this paper, we consider full-duplex and half-duplex Gaussian relay channels where the noises at the relay and destination are arbitrarily correlated. We first derive the capacity upper bound and the achievable rates with three existing schemes: Decode-
Cui, Shuguang, Goldsmith, Andrea J., Jiang, Jinhua, Zhang, Lili   +3 more
core   +1 more source

Error Analysis of Fixed-Gain AF Relaying with MRC Over Nakagami-m Fading Channels [PDF]

Radioengineering, 2016
This article investigates the error performance of wireless communication systems that employ binary modulations and Amplify-and-Forward (AF) relaying over flat Nakagami-m faded links with maximum ratio combining (MRC) at destination.
S. H. Alvi, S. Wyne
doaj  

Energy Efficiency Optimization for AF Relaying with TS-SWIPT

Energies, 2019
In this paper, we focus on energy efficiency (EE) maximization for simultaneous wireless information and power transfer (SWIPT) based energy-constrained and amplify-and-forward (AF) relay networks.
Guangyue Lu, Chan Lei, Yinghui Ye, Liqin Shi, Tianci Wang   +4 more
doaj   +1 more source

Optimal Relay Selection for Physical-Layer Security in Cooperative Wireless Networks

, 2013
In this paper, we explore the physical-layer security in cooperative wireless networks with multiple relays where both amplify-and-forward (AF) and decode-and-forward (DF) protocols are considered.
Shen, Weiming, Wang, Xianbin, Zou, Yulong   +2 more
core   +1 more source

Enhancement of a SWIPT Based Amplify and Forward Cooperative Relaying Protocol for Wireless Communication System

ABUAD Journal of Engineering Research and Development
Communication through unbounded environment known as Wireless Communication (WC) undergoing rapid expansion driven by the escalating demand for its services.
Festus Kehinde Ojo, Nafiu Olayiwola Akintoye, Samson Iyanda Ojo, Oluwatobi Omolola Oyedokun   +3 more
doaj   +1 more source

A Partial Amplify and Forward Cooperative Communication Strategy Based on Blind Signal Detection

IEEE Access, 2020
Due to the great potential in extending propagation distance and enhancing the link reliability, amplify and forward (AF) cooperative communications have attracted much attention recently.
Chang Li, Zhili Zhou, Guihua Cui, Zhenzhou Tang, Xiukai Ruan, Qibo Cai   +5 more
doaj   +1 more source

A Novel Equivalent Definition of Modified Bessel Functions for Performance Analysis of Multi-Hop Wireless Communication Systems

IEEE Access, 2017
A statistical model is derived for the equivalent signal-to-noise ratio of the Source-to-Relay-to-Destination (S-R-D) link for Amplify-and-Forward (AF) relaying systems that are subject to block Rayleigh-fading.
Mehdi M. Molu, Pei Xiao, Mohsen Khalily, Lei Zhang, Rahim Tafazolli   +4 more
doaj   +1 more source