Results 11 to 20 of about 11,394 (265)

On the Performance Gain of Hybrid Decode-Amplify-Forward Cooperative Communications

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
We investigate the performance of adaptive decode-forward (ADF), amplify-forward (AF), and hybrid decode-amplify-forward (HDAF) relaying protocol. Specifically, we derive the closed-form expression of symbol error probability (SEP) for these three ...
Trung Q. Duong   +1 more
doaj   +2 more sources

Short-Packet Amplify-and-Forward Relaying for the Internet-of-Things in the Face of Imperfect Channel Estimation and Hardware Impairments

open access: yesIEEE Transactions on Green Communications and Networking, 2021
In next-generation wireless systems ultra-reliable low-latency communications (URLLC) have to be realized in support of the Internet-of-things (IoT).
Vahid Shahiri, Ali Kuhestani, L. Hanzo
semanticscholar   +1 more source

Amplify-and-Forward Relaying for Hierarchical Over-the-Air Computation [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2020
Over-the-air computation (AirComp) has emerged as a promising technique in future intelligent wireless networks, which enables swift functional computation among distributed wireless devices (WDs) by exploiting the superposition property of wireless ...
Feng Wang, Jie Xu, V. Lau, Shuguang Cui
semanticscholar   +1 more source

Energy Efficient Joint Power Optimization for Full-Duplex Relaying

open access: yesIEEE Access, 2019
Full-duplex (FD) relaying is a promising technology for the next generation communication systems. In this paper, we aim to jointly optimize the source and relay transmit powers to maximize the energy efficiency (EE) for both amplify-and-forward (AF) and
Zhenyao He   +3 more
doaj   +1 more source

Performance Analysis of Code Combining Based Cooperative Protocol with Amplified-and-Forward (AF) Relaying

open access: yesIEICE Transactions on Communications, 2010
In this letter, we analyze the error performance of a code combining based cooperative diversity protocol. For coded transmission schemes, code-combining can obtain a near optimal low rate code by combining repeated codewords. An analytical method for evaluating the performances of such scheme is presented.
Asaduzzaman, Hyung Yun Kong
openaire   +1 more source

Simulasi dan Analisis Transmisi Multihop Mobile WiMAX Dengan Metode Hybrid

open access: yesJurnal Elektronika dan Telekomunikasi, 2016
Makalah ini membahas tentang pengembangan relay station untuk transmisi downlink Mobile WiMAX dengan menggunakan metode hybrid, yaitu metode transmisi yang menggunakan tiga buah transmisi.
Muhamad Asvial, Taufiq Nugroho
doaj   +1 more source

Interference Channels With Full-Duplex Amplify-and-Forward Receiver Cooperations

open access: yesIEEE Access, 2020
This paper considers a two-transmitter and two-receiver interference channel (IC), where each transmitter sends a message to its desired receiver. In particular, the full-duplex (FD) amplify-and-forward (AF) protocol is adopted to build up the receiver ...
Dan Wang   +3 more
doaj   +1 more source

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, M. Sellathurai
semanticscholar   +1 more source

A New Store-Then-Amplify-and-Forward Protocol for UAV Mobile Relaying [PDF]

open access: yesIEEE Wireless Communications Letters, 2020
In this letter, we consider the use of an unmanned aerial vehicle (UAV) as a mobile relay to assist the communication between two ground users without a direct link. We propose a novel store-then-amplify-and-forward (SAF) relaying protocol for the UAV to
Xiaochen Lin, Weidong Mei, Rui Zhang
semanticscholar   +1 more source

Hybrid TSR–PSR Alternate Energy Harvesting Relay Network over Rician Fading Channels: Outage Probability and SER Analysis

open access: yesSensors, 2018
In this research, we investigate a hybrid time-switching relay (TSR)⁻power-splitting relay (PSR) alternate energy harvesting (EH) relaying network over the Rician fading channels.
Tan N. Nguyen   +6 more
doaj   +1 more source

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