Secure and high-speed short-range wireless communication technology with a limited communication range.
Nessum AIR (formerly PaWalet Link) is a near-field wireless communication technology that applies Wavelet OFDM technology, which is one of the wired communication technologies, to wireless communication. It utilizes a magnetic field for communication and limits the range by employing a loop antenna. Since it allows for both wired and wireless communication using the same technology, hybrid networks that combine both can be easily constructed. Furthermore, by utilizing multi-hop technology, it is also possible to expand to large-scale networks. 【Features of Wireless Communication】 ■ It uses a communication method based on magnetic fields, and the communication range (from a few mm to several tens of cm) is limited by transmission power and antenna shape (aperture area). ■ When combined with Wireless Power Transfer (WPT), it enables not only high-speed communication but also WPT control and position detection. 【Features of Hybrid Communication (Wireless/Wired)】 ■ By using functions such as OFDM modulation/demodulation, error correction, and encryption, it theoretically achieves a maximum effective speed in the hundreds of Mbps range. ■ Various modes/channels allow for application in a wide range of usage scenarios. For more details, please refer to the PDF materials or feel free to contact us. We are also looking for individuals who would like to explore solutions utilizing this technology together.
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basic information
【Basic Specifications for Nessum AIR Technology】 ■ Usage Type: Short-range Wireless / Hybrid of Wired and Wireless ■ Modulation/Demodulation: Wavelet OFDM ■ Frequency Bandwidth: ~110MHz ■ PHY Speed: (Theoretically) Up to 1Gbps ■ Number of Channels: 27 channels ■ Error Correction: Reed-Solomon codes, Convolutional codes, (LDPC-CC) ■ Network Configuration: 1-to-1, 1-to-N, N-to-N, etc. ■ Encryption Method: AES 128 bits, IEEE 802.1X ■ Communication Mode: High-speed, Robust ■ Multi-hop: 10 hops ■ Number of Connections: 128 nodes (complete), 1024 nodes (multi-hop)
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Applications/Examples of results
【Usage Examples】 ■ Connect communication lines (such as Ethernet) to each terminal and utilize short-range wireless communication. ■ Connect communication lines (such as control lines or coaxial cables) to each terminal to build a hybrid communication network environment with both wireless and wired connections. ■ Use in conjunction with WPT for high-speed communication, as well as WPT control and position detection. ■ Use in conjunction with WPT to replace slip rings (infinite rotation). ■ If interference occurs between adjacent Nessum terminals, switch channels to avoid interference. 【Utilization Images (+WPT)】 ■ Example of deployment in e-Mobility (EV). ■ Example of deployment in e-Mobility (e-Scooter). ■ Example of deployment in e-Mobility (AGV). ■ Example of deployment in underwater and marine IoT.
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Company information
The Nessum department has dedicated over 20 years to pioneering the development and promotion of our proprietary communication technology, Nessum (formerly HD-PLC). What began in the early 2000s as an innovative in-home communication solution, Nessum has undergone a remarkable evolution. Today, it stands as a robust backbone for large-scale networks across buildings, factories, and social infrastructure. This proven technology is now an essential IoT solution, empowering diverse B2B sectors to overcome complex challenges and drive efficiency. Unleash the full potential of your environment's IoT transformation. Utilize Nessum technology to accelerate your Digital Transformation (DX) and Green Transformation (GX), propelling your business forward into a smarter, more sustainable future.