Ultra-narrowband network

Definition
An ultra-narrowband (UNB) network is a

{{Quote|low-bandwidth, low-power, long-range networks based on small transmitting devices and dedicated base station antennas. As these technol­ ogies mature, the possibility for cheaply fitting sensing devices with such uplinks for telemetry can become more feasible.

Overview
"Research should focus specifically on the following domains:


 * Portability. Wireless transmissions are affected by movement, in part due to Doppler effects, so efforts to prop­ erly categorize and accommodate mobility models of both end devices and base stations (possibly portable, e.g., mounted on fire vehicles) should be considered.
 * Reliable transmissions. Current UNB technologies do not support duplex communications, so reliable transmis­ sion of data cannot be guaranteed, but it can be improved through techniques like retransmission across multiple channels.
 * Device management. Due to the low-power and uplink-only nature of current devices, monitoring, management, and maintenance should be considered priorities for possible deployments.