Ingenu
Ingenu, formerly known as OnRamp, is a low power WAN( LPWAN) that uses random phase multiple access( RPMA). Ingenu is used in the Internet of Things( IoT) and in Machine to Machine Communication( M2M). Unlike many other LPWANs such as LoRaWAN, Weightless, Mioty, nWave, Dash7 or SigFox, Ingenu operates in the 2.4 GHz range, while the other LPWANs often use the ISM band at 868 MHz.
In Ingenu, low-cost transceivers and access points( AP) form the network topology over which data transmission, data rates and distances are realized. The access points and the end nodes are synchronized and transmit the data in a defined frame which is sent after a random delay time. The end points provide signal spreading depending on the received signal strength. The access points ensure that the spread signal is converted back to its original form, and that the Viterbi code is de-interleaved and decoded. Before the signal is processed further, a cyclic block check(CRC) is performed. When traffic increases, the access points can control the end nodes to decrease the signal strength in order to reduce the number of nodes they are in contact with.
Ingenu supports data rates between 8 bit/s and 8 kbit/s, the bridgeable distance is between 4 km and 100 km, and the number of nodes is almost unlimited. It has two-way authentication, 256-bit encryption, and a 16-bytehash value for traffic protection and integrity assurance.