Results 1 to 10 of about 100,872 (165)

Energy Efficiency Analysis in Amplify-and-Forward and Decode-and-Forward Cooperative Networks [PDF]

open access: yes2010 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.
Chen, Qing, Gursoy, Mustafa Cenk
core   +3 more sources

Coding and Decoding for the Dynamic Decode and Forward Relay Protocol [PDF]

open access: yesIEEE Transactions on Information Theory, 2008
We study the Dynamic Decode and Forward (DDF) protocol for a single half-duplex relay, single-antenna channel with quasi-static fading. The DDF protocol is well-known and has been analyzed in terms of the Diversity-Multiplexing Tradeoff (DMT) in the ...
Caire, Giuseppe, Kumar, K. Raj
core   +3 more sources

Joint resource optimization in spectrum sharing decode and forward relaying networks. [PDF]

open access: yesPLoS ONE, 2021
This paper proposes an adaptive power allocation and subcarrier pairing algorithm for orthogonal frequency division multiplexing based decode and forward cognitive radio networks, where primary and secondary users achieve spectrum sharing in the same ...
Dong Qin
doaj   +2 more sources

Comparison of managed decode-and-forward scheme and common decode-and-forward scheme in cooperative communication systems [PDF]

open access: yesJournal of Intelligent Procedures in Electrical Technology, 2015
In this paper, the symbol error rate of M-PSK modulation in managed relay scheme is computed. In the conventional technique, the relay always decodes the received signal and re-sends it to the destination. In the destination, the two copies of the signal
Rooholah Aghajani   +2 more
doaj   +1 more source

ARQ Protocols in Cognitive Decode-and-Forward Relay Networks: Opportunities Gain [PDF]

open access: yesRadioengineering, 2015
In this paper, two novel automatic-repeat-request (ARQ) based protocols were proposed, which exploit coop- eration opportunity inherent in secondary retransmission to create access opportunities.
Zongsheng Zhang, Qihui Wu, Jinlong Wang
doaj   +4 more sources

Unified Performance Analysis of MIMO Mixed RF/FSO Relaying System

open access: yesApplied Sciences, 2021
This paper investigates the asymmetric dual–hop multiple input multiple output (MIMO) mixed radio frequency (RF)/free space optical (FSO) decode–and–forward (DF) relaying system.
Haodong Liang   +4 more
doaj   +1 more source

Partial Soft Decode and Forward [PDF]

open access: yes2011 IEEE Vehicular Technology Conference (VTC Fall), 2011
Soft Decode and Forward (SDF) cooperation techniques have been shown to improve the performance of Distributed Turbo Coding (DTC) schemes, in which the Source Node (SN) and Relay Node (RN) employ convolutional codes, while the Destination Node (DN) employs a turbo decoder.
Ahmed, Pir S.   +2 more
openaire   +2 more sources

Performance Analysis of Hybrid Radio Frequency and Free Space Optical Communication Networks with Cooperative Spectrum Sharing

open access: yesPhotonics, 2021
This paper investigates the impact of cooperative spectrum sharing policy on the performance of hybrid radio frequency and free space optical wireless communication networks, where primary users and secondary users develop a band of the same spectrum ...
Dong Qin, Yuhao Wang, Tianqing Zhou
doaj   +1 more source

Superposition-coded concurrent decode-and-forward relaying [PDF]

open access: yes2008 IEEE International Symposium on Information Theory, 2008
Proceedings of the 2008 IEEE International Symposium on Information Theory, Toronto, ON, Canada, July 6 - 11 ...
Wang, C.   +9 more
openaire   +3 more sources

A Two-Hop mmWave MIMO NR-Relay Nodes to Enhance the Average System Throughput and BER in Outdoor-to-Indoor Environments

open access: yesSensors, 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
doaj   +1 more source

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