{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,4]],"date-time":"2026-06-04T15:52:13Z","timestamp":1780588333225,"version":"3.54.1"},"reference-count":41,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2023,9,4]],"date-time":"2023-09-04T00:00:00Z","timestamp":1693785600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Research Foundation of Korea (NRF)","award":["NRF-2022R1A2B5B01001190"],"award-info":[{"award-number":["NRF-2022R1A2B5B01001190"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Multihop transmission is one of the important techniques to overcome the transmission coverage of each node in wireless sensor networks (WSNs). However, multihop transmission has a security issue due to the nature of a wireless medium. Additionally, the eavesdropper also attempts to interrupt the legitimate users\u2019 transmission. Thus, in this paper, we study the secrecy performance of a multihop transmission under various eavesdropping attacks for WSNs. To improve the secrecy performance, we propose two node selection schemes in each cluster, namely, minimum node selection (MNS) and optimal node selection (ONS) schemes. To exploit the impact of the network parameters on the secrecy performance, we derive the closed-form expression of the secrecy outage probability (SOP) under different eavesdropping attacks. From the numerical results, the ONS scheme shows the most robust secrecy performance compared with the other schemes. However, the ONS scheme requires a lot of channel information to select the node in each cluster and transmit information. On the other side, the MNS scheme can reduce the amount of channel information compared with the ONS scheme, while the MNS scheme still provides secure transmission. In addition, the impact of the network parameters on the secrecy performance is also insightfully discussed in this paper. Moreover, we evaluate the trade-off of the proposed schemes between secrecy performance and computational complexity.<\/jats:p>","DOI":"10.3390\/s23177653","type":"journal-article","created":{"date-parts":[[2023,9,4]],"date-time":"2023-09-04T10:24:30Z","timestamp":1693823070000},"page":"7653","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Secrecy Performance Analysis of Cooperative Multihop Transmission for WSNs under Eavesdropping Attacks"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0574-2540","authenticated-orcid":false,"given":"Yosefine","family":"Triwidyastuti","sequence":"first","affiliation":[{"name":"Department of Software and Communications Engineering in Graduate School, Hongik University, Sejong City 30016, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1680-1190","authenticated-orcid":false,"given":"Ridho Hendra Yoga","family":"Perdana","sequence":"additional","affiliation":[{"name":"Department of Software and Communications Engineering in Graduate School, Hongik University, Sejong City 30016, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4851-0811","authenticated-orcid":false,"given":"Kyusung","family":"Shim","sequence":"additional","affiliation":[{"name":"School of Computer Engineering and Applied Mathematics, Hankyong National University, Anseong City 17579, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0587-3754","authenticated-orcid":false,"given":"Beongku","family":"An","sequence":"additional","affiliation":[{"name":"Department of Software and Communications Engineering, Hongik University, Sejong City 30016, Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,9,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"56948","DOI":"10.1109\/ACCESS.2020.2980369","article-title":"Toward Tactile Internet in beyond 5G Era: Recent Advances, Current Issues, and Future Directions","volume":"8","author":"Sharma","year":"2020","journal-title":"IEEE Access"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1166","DOI":"10.1109\/JPROC.2021.3061701","article-title":"6G Wireless Systems: Vision, Requirements, Challenges, Insights, and Opportunities","volume":"109","author":"Tataria","year":"2021","journal-title":"Proc. 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