{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,27]],"date-time":"2026-03-27T15:56:13Z","timestamp":1774626973599,"version":"3.50.1"},"reference-count":14,"publisher":"MDPI AG","issue":"23","license":[{"start":{"date-parts":[[2019,11,26]],"date-time":"2019-11-26T00:00:00Z","timestamp":1574726400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["U1701265; U1809211,"],"award-info":[{"award-number":["U1701265; U1809211,"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Software-defined acoustic modems (SDAMs) for underwater communication and networking have been an important research topic due to their flexibility and programmability. In this paper, we propose a reconfigurable platform for SDAMs based on the TI AM5728 processor, which integrates dual-core ARM Cortex-A15 CPUs and two TI C66x DSP cores. The signal processing and A\/D, D\/A for physical-layer communication are implemented in the DSP cores. The networking protocols and the application programs are implemented in the ARM cores. The proposed platform has the following characteristics: (1) Due to the high-performance dual-ARM cores, the whole NS3 network simulator can be run in the ARM cores. Network protocols developed in a software simulation platform (e.g., NS3 platform) can be seamlessly migrated to a hardware platform without modification. (2) A new physical-layer module associated with real acoustic channel is developed, such that a data packet generated from the application layer will be transmitted through a real acoustic channel. The results of networking experiments with five nodes are presented to demonstrate the effectiveness of the proposed platform.<\/jats:p>","DOI":"10.3390\/s19235168","type":"journal-article","created":{"date-parts":[[2019,11,26]],"date-time":"2019-11-26T10:57:27Z","timestamp":1574765847000},"page":"5168","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Multicore-Processor Based Software-Defined Communication\/Network Platform for Underwater Internet of Things"],"prefix":"10.3390","volume":"19","author":[{"given":"Chaohui","family":"Luo","sequence":"first","affiliation":[{"name":"School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China"}]},{"given":"Biyun","family":"Ma","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1031-492X","authenticated-orcid":false,"given":"Fangjiong","family":"Chen","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China"}]},{"given":"Quansheng","family":"Guan","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China"}]},{"given":"Hua","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China"}]},{"given":"Fei","family":"Ji","sequence":"additional","affiliation":[{"name":"School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,26]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Basagni, S., Conti, M., Giordano, S., and Stojmenovic, I. (2013). Advances in Underwater Acoustic Networking. Mobile Ad Hoc Networking: The Cutting Edge Directions, IEEE.","DOI":"10.1002\/9781118511305"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"2855","DOI":"10.1109\/COMST.2018.2842060","article-title":"Software-Defined Architectures and Technologies for Underwater Wireless Sensor Networks: A Survey","volume":"20","author":"Luo","year":"2018","journal-title":"IEEE Commun. Surv. Tutor."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"722","DOI":"10.1109\/JOE.2016.2598412","article-title":"Software-Defined Underwater Acoustic Modems: Historical Review and the NILUS Approach","volume":"42","author":"Dol","year":"2017","journal-title":"IEEE J. Ocean. Eng."},{"key":"ref_4","unstructured":"Sozer, E.M., and Stojanovic, M. (, January September). Reconfigurable acoustic modem for underwater sensor networks. 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Available online: https:\/\/www.nsnam.org\/doxygen\/group__uan.html."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/23\/5168\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:37:31Z","timestamp":1760189851000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/23\/5168"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,11,26]]},"references-count":14,"journal-issue":{"issue":"23","published-online":{"date-parts":[[2019,12]]}},"alternative-id":["s19235168"],"URL":"https:\/\/doi.org\/10.3390\/s19235168","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,11,26]]}}}