Technical Resources

Build Beneath the Surface

Datasheets, whitepapers, videos, and reference materials to support your subsea communication projects.

WNC - Gen4X Series

Subnero M25M Series Modems Subnero S40H Series Modems Subnero L12L Series Modems Subnero Multi-receiver Modems Gen4X Series Release Flyer

WNC - Gen4 Series

Gen 4 WNC Product Series Brief Subnero M25M Underwater Modems Subnero S40H Underwater Modems Subnero L12L Underwater Modems Subnero Multi-receiver Underwater Modems

UnetStack

UnetStack Brochure

SWIS - ADCP Edition

Subnero Wireless Integrated Suite (SWIS), ADCP Edition

Solutions

Ripple Subnero Underwater Network (SUN)

Whitepapers

Unlocking Underwater Connectivity The Future of Underwater Wireless

Videos

WNC UnetStack Subnero

Patents

P Anjangi, M Chitre, M Ignatius, CP Pendharkar. (2022). A RECEIVER SYSTEM AND A METHOD FOR RECEIVING A TRANSMITTED SIGNAL VIA A LONG-RANGE LINK. US Patent App. 17/438,761.

Publications

S. Etter et al., "Design, Development and Deployment of an Underwater Cellular Network," OCEANS 2024 - Halifax, Halifax, NS, Canada, 2024, pp. 1-7, doi: 10.1109/OCEANS55160.2024.10754077. Ignatius, Manu, Anjangi, Prasad, and Mandar Chitre. "Smart Wireless Data Transfer Solution for Underwater Sensors Powered by Edge Computing." Paper presented at the Offshore Technology Conference, Houston, Texas, USA, May 2023. doi: https://doi.org/10.4043/32543-MS M. Chitre and L. Kexin, "Physics-informed Data-driven Communication Performance Prediction for Underwater Vehicles," 2022 Sixth Underwater Communications and Networking Conference (UComms), Lerici, Italy, 2022, pp. 1-5, doi: 10.1109/UComms56954.2022.9905671. W. Shuangshuang, P. Anjangi and M. Chitre, "Adaptive Modulation and Feedback Strategy for an Underwater Acoustic Link," 2022 Sixth Underwater Communications and Networking Conference (UComms), Lerici, Italy, 2022, pp. 1-5, doi: 10.1109/UComms56954.2022.9905694. W. Shuangshuang, M. Chitre and P. Anjangi, "Monte Carlo Tree Search and Delay-Aware Feedback Adaptation for Underwater Acoustic Link Tuning," OCEANS 2021: San Diego – Porto, 2021, pp. 1-8, doi: 10.23919/OCEANS44145.2021.9705921. P. Anjangi, M. Chitre, M. Ignatius and C. Pendharkar, "Distributed Spatial Diversity Enabled Receiver System For An Underwater Acoustic Link," 2021 Fifth Underwater Communications and Networking Conference (UComms), 2021, pp. 1-5, doi: 10.1109/UComms50339.2021.9598131. P. Anjangi, A. Gibson, M. Ignatius, C. Pendharkar, A. Kurian, A. Low, M. Chitre, "Diver Communication and Localization System using Underwater Acoustics," Global Oceans 2020: Singapore – U.S. Gulf Coast, 2020, pp. 1-8, doi: 10.1109/IEEECONF38699.2020.9389462. P. Anjangi and M. Chitre, "Model-based Data-driven Learning Algorithm for Tuning an Underwater Acoustic Link," 2018 Fourth Underwater Communications and Networking Conference (UComms), 2018, pp. 1-5, doi: 10.1109/UComms.2018.8493161. M. Chitre, R. Bhatnagar and W. -S. Soh, "UnetStack: An agent-based software stack and simulator for underwater networks," 2014 Oceans - St. John's, St. John's, NL, Canada, 2014, pp. 1-10, doi: 10.1109/OCEANS.2014.7003044. M. Chitre, R. Bhatnagar, M. Ignatius and S. Suman, "Baseband signal processing with UnetStack," 2014 Underwater Communications and Networking (UComms), Sestri Levante, Italy, 2014, pp. 1-4, doi: 10.1109/UComms.2014.7017156.

Magazine Articles

Ignatius, Manu, and Prasad Anjangi. "Multichannel Modems The'Swiss Army Knife'of Acoustic Modems in the Maritime Domain." SEA TECHNOLOGY 62.11 (2021): 17-21. Florie Mancel. "ADCP Data Retrieval" SEA TECHNOLOGY (May 2023): 14-16.

News

Subnero unveils new generation of underwater acoustic smart modems Subnero and Popoto Modem Partner to Launch the S1000-N Subnero Wireless Integrated Suite (SWIS) – ADCP edition How water drones can help Singapore sustain its water sources Talking underwater, disruption-safe Tipping Point [35:38] Supporting the world’s water start-ups THE HANGAR by NUS Enterprise Entrepreneurs Feature — Subnero Singapore uses robot swans for its water management Researchers in Singapore Deploy Robot Swans to Test Water Quality Singaporean start-up Subnero takes Internet underwater Think underwater internet is impossible? This Singapore startup is proving people wrong Meet Subnero, Asia’s sole finalist at IoT Innovation Grand Challenge How do submarines get online? From balloons to shrimp-filled shallows, the future is wireless Captain Nemo goes online

Relevant Third-party Publications

Sweta T, Ruthrapriya S, Sneka J, John Sahaya Rani Alex, Rohith G, Mangal Das, "Reinforcement learning-based automated modulation switching algorithm for an enhanced underwater acoustic communication," Results in Engineering, Volume 23, 2024, 102791, ISSN 2590-1230, https://doi.org/10.1016/j.rineng.2024.102791. V. Pallayil, N. C. Chong, L. T. Khoon and M. A. Chitre, "A Low-cost, Expendable Shallow Water Profiling Float with Improved Capabilities," 2025 IEEE Underwater Technology (UT), Taipei, Taiwan, 2025, pp. 1-5, doi: 10.1109/UT61067.2025.10947466. Connor Webb, Syed Murtaza Rizvi, Aswanth Sampathkumar, Brodie Alexander, Aijun Song, and Fumin Zhang. 2022. Integration of Acoustic Communication with Underwater Autonomy: A Case Study. In Proceedings of the 16th International Conference on Underwater Networks & Systems (WUWNet '22). Association for Computing Machinery, New York, NY, USA, Article 18, 1–7. https://doi.org/10.1145/3567600.3568148. Emil Wengle, John Potter, Damiano Varagnolo, and Hefeng Dong. 2022. A JANUS-Based Consensus Protocol for Parametric Modulation Schemes. In Proceedings of the 16th International Conference on Underwater Networks & Systems (WUWNet '22). Association for Computing Machinery, New York, NY, USA, Article 9, 1–8. https://doi.org/10.1145/3567600.3568142. B. R. Chandavarkar and A. V. Gadagkar, "A Framework for Residual Energy Model in UnetStack Simulator for Underwater Sensor Networks," 2020 5th International Conference on Computing, Communication and Security (ICCCS), Patna, India, 2020, pp. 1-8, doi: 10.1109/ICCCS49678.2020.9277035. H. S. Dol, P. Casari, T. van der Zwan and R. Otnes, "Software-Defined Underwater Acoustic Modems: Historical Review and the NILUS Approach," in IEEE Journal of Oceanic Engineering, vol. 42, no. 3, pp. 722-737, July 2017, doi: 10.1109/JOE.2016.2598412.