Low-Complexity Relay Selection for Full-Duplex Random Relay Networks

Full-duplex relay networks have been studied to enhance network performance under the assumption that the number and positions of relay nodes are fixed. To account for the practical randomness in the number and locations of relays, this paper investigates full-duplex random relay networks (FDRRNs) w...

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Main Authors: Jonghyun Bang, Taehyoung Kim
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/13/6/971
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author Jonghyun Bang
Taehyoung Kim
author_facet Jonghyun Bang
Taehyoung Kim
author_sort Jonghyun Bang
collection DOAJ
description Full-duplex relay networks have been studied to enhance network performance under the assumption that the number and positions of relay nodes are fixed. To account for the practical randomness in the number and locations of relays, this paper investigates full-duplex random relay networks (FDRRNs) where all nodes are randomly distributed following a Poisson point process (PPP) model. In addition, we propose a low-complexity relay selection algorithm that constructs the candidate relay set while considering the selection diversity gain. Our simulation results demonstrate that, rather than simply increasing the number of candidate relay nodes, selecting an appropriate candidate relay set can achieve significant performance enhancement without unnecessarily increasing system complexity.
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spelling doaj-art-d61bdb086283419984df8d74652bc66b2025-08-20T02:42:26ZengMDPI AGMathematics2227-73902025-03-0113697110.3390/math13060971Low-Complexity Relay Selection for Full-Duplex Random Relay NetworksJonghyun Bang0Taehyoung Kim1SK Telecom Co., Ltd., Seoul 04539, Republic of KoreaSchool of Electrical Engineering, Kookmin University, Seoul 02707, Republic of KoreaFull-duplex relay networks have been studied to enhance network performance under the assumption that the number and positions of relay nodes are fixed. To account for the practical randomness in the number and locations of relays, this paper investigates full-duplex random relay networks (FDRRNs) where all nodes are randomly distributed following a Poisson point process (PPP) model. In addition, we propose a low-complexity relay selection algorithm that constructs the candidate relay set while considering the selection diversity gain. Our simulation results demonstrate that, rather than simply increasing the number of candidate relay nodes, selecting an appropriate candidate relay set can achieve significant performance enhancement without unnecessarily increasing system complexity.https://www.mdpi.com/2227-7390/13/6/971outage probabilityrandom relay networkcooperative networkfull duplex relayrelay selection diversity
spellingShingle Jonghyun Bang
Taehyoung Kim
Low-Complexity Relay Selection for Full-Duplex Random Relay Networks
Mathematics
outage probability
random relay network
cooperative network
full duplex relay
relay selection diversity
title Low-Complexity Relay Selection for Full-Duplex Random Relay Networks
title_full Low-Complexity Relay Selection for Full-Duplex Random Relay Networks
title_fullStr Low-Complexity Relay Selection for Full-Duplex Random Relay Networks
title_full_unstemmed Low-Complexity Relay Selection for Full-Duplex Random Relay Networks
title_short Low-Complexity Relay Selection for Full-Duplex Random Relay Networks
title_sort low complexity relay selection for full duplex random relay networks
topic outage probability
random relay network
cooperative network
full duplex relay
relay selection diversity
url https://www.mdpi.com/2227-7390/13/6/971
work_keys_str_mv AT jonghyunbang lowcomplexityrelayselectionforfullduplexrandomrelaynetworks
AT taehyoungkim lowcomplexityrelayselectionforfullduplexrandomrelaynetworks