The Weightless-N open standard goes live
05 May 2015
The Weightless SIG has published version 1.0 of the new Weightless-N open standard based on a low power, wide area, star network architecture.
Operating in the sub-GHz spectrum using ultra narrow band (UNB) technology, Weightless-N offers best-in-class signal propagation characteristics achieving a range of several kilometres, even in challenging urban environments. Very low power consumption ensures exceptionally long battery life.
Weightless is differentiated from alternative proprietary LPWAN technologies by enabling a competitive, free and fair market that does not lock developers into using particular vendors or network service providers.
Any company is able to develop both low cost base stations and terminals using royalty free Weightless technology. Networks can be owned and operated independently by any company or, typically, Internet of Things (IoT) terminal devices and applications can be produced for use cases that will rely on connection to networks operated by third parties. A Weightless terminal device can be produced for less than $2 with a Weightless base station bill-of-materials of less than $3,000.
“The competitive environment is unique to a truly open standard leading to lower costs, more security, less risk and more ongoing innovation," says Jonathan Wiggin, CEO of NWave Technologies. "That translates to a superior solution for the developer and end user”.
Weightless-N is based on a differential binary phase shift keying (DBPSK) digital modulation scheme to transmit within narrow frequency bands using a frequency hopping algorithm for interference mitigation and enhanced security. It provides for encryption and implicit authentication using a shared secret key regime to encode transmitted information via a 128bit AES algorithm.
The technology supports mobility with the network automatically routing terminal messages to the correct destination. Multiple networks, typically operated by different companies, are enabled and can be co-located. Each base station queries a central database to determine which network the terminal is registered to in order to decode and route data accordingly.
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