Results 261 to 270 of about 121,464 (311)

Age and Energy Tradeoff for Short Packet Based Two-Hop Decode-and-Forward Relaying Networks

IEEE Wireless Communications and Networking Conference, 2021
Real-time and energy-efficient transmissions are two critical demands for status update systems, however it is difficult to meet these requirements simultaneously.
Mangang Xie, Jie Gong, Xiao Ma
semanticscholar   +1 more source

Two Birds With One Stone: Exploiting Decode-and-Forward Relaying for Opportunistic Ambient Backscattering

IEEE Transactions on Communications, 2020
In this paper, we propose and analyze an opportunistic ambient backscatter (AmBack)-assisted decode-and-forward (DF) (i.e., ODF-AmBack) relaying scheme, where the relay can not only forward the signal from the source as in the traditional DF scheme but ...
Dong Li
semanticscholar   +1 more source

Distributed Decode and Forward Beamforming

37th Annual IEEE Conference on Local Computer Networks, 2012
Distributed transmit beamforming is a wireless communication technique in which multiple independent antennas transmit a common message while controlling their transmitted carrier phases to constructively interfere the message at a destination. Depending on the transmission goals and choice of network parameters, certain noteworthy benefits arise from ...
Chris Walsh, Douglas Hakkarinen, Tracy Camp   +2 more
openaire   +1 more source

Optimal Path Construction with Decode and Forward Relays in mmWave Backhaul Networks

International Conference on Computing, Networking and Communications, 2020
In this paper, we consider the problem of constructing paths using decode and forward (DF) relays for millimeter wave (mmWave) backhaul communications in urban environments.
Yan Yan, Qiang Hu, D. Blough
semanticscholar   +1 more source

Cooperative Fading Regions for Decode and Forward Relaying

IEEE Transactions on Information Theory, 2008
Cooperative transmission protocols over fading channels are based on a number of relaying nodes to form virtual multi-antenna transmissions. Diversity provided by these techniques has been widely analyzed for the Rayleigh fading case. However, short range or fixed wireless communications often experience propagation environments where the fading ...
SAVAZZI, STEFANO, SPAGNOLINI, UMBERTO
openaire   +2 more sources

A Stacked-Autoencoder Based End-to-End Learning Framework for Decode-and-Forward Relay Networks

IEEE International Conference on Acoustics, Speech, and Signal Processing, 2020
In this work, we study an end-to-end deep learning (DL)based constellation design for decode-and-forward (DF) relay network. Firstly, we study both the one-way (OW) and two-way (TW) relaying by interpreting DF relay networks as stacked autoencoders ...
Ankit Gupta, M. Sellathurai
semanticscholar   +1 more source

Mixed FSO/RF SIMO SWIPT Decode-and-Forward Relaying Systems

International Conference on Signal Processing and Communications, 2020
This article focuses on a dual-hop simultaneous wireless information and power transfer (SWIPT) single-input-multiple-output (SIMO) system having one free-space optical (FSO) link followed by one radio frequency (RF) link.
Rupender Singh, M. Rawat, Anshul Jaiswal
semanticscholar   +1 more source

ML Decoder for Decode-and-Forward Based Cooperative Communication System

IEEE Transactions on Wireless Communications, 2011
Decode-and-forward (DF) protocol based cooperative communication is vulnerable to the erroneous relaying by the relay. In this paper, we derive a maximum-likelihood (ML) decoder for the DF protocol utilizing arbitrary complex-valued constellations including M-PSK, M-PAM, and M-QAM.
Manav R. Bhatnagar, Are Hjorungnes
openaire   +1 more source

ML decoding in decode-and-forward based cooperative communication system

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In this paper, we derive a maximum-likelihood (ML) decoder of the decode-and-forward (DF) protocol utilizing an arbitrary complex-valued M-point constellation. Existing decoders of the DF based cooperative systems are applicable only to real-valued constellations like BPSK and M-PAM, hence, also to square M2-QAM.
Manav R. Bhatnagar, Are Hjorungnes
openaire   +1 more source