a media access protocol (mac) that sits on top of the LoRa physical
layer within the framework of LoRAWAN Architecture.
The LoRaWAN is a Long Range Low Power Wide Area
(LPWA) Network employing LoRa modulation and LoraWAN MAC protocol designed to wirelessly connect battery
operated ‘things’ to the internet in regional, national or global
networks, and targets key Internet of Things (IoT) requirements such
as bi-directional communication, end-to-end security, mobility and
LoRaWAN network architecture is
deployed in a star-of-stars topology in which gateways relay
messages between end-devices and a central network server. The
gateways are connected to the network server via standard IP
connections and act as a transparent bridge, simply converting RF
packets to IP packets and vice versa. The wireless communication
takes advantage of the Long Range characteristics of the LoRaŇ
physical layer, allowing a single-hop link between the end-device
and one or many gateways. All modes are capable of bi-directional
communication, and there is support for multicast addressing groups
to make efficient use of spectrum during tasks such as Firmware
Over-The-Air (FOTA) upgrades or other mass distribution messages.
LoRaWAN has three different classes of
end-point devices to address the different needs reflected in the
wide range of applications:
end-devices with deterministic downlink latency
LoRaWAN baud rates range from 0.3 kbps
to 50 kbps.
Security is a primary concern for any
mass IoT deployment and the LoRaWAN specification defines two layers
A unique 128-bit
Network Session Key shared between the end-device and network
A unique 128-bit
Application Session Key (AppSKey) shared end-to-end at the
AES algorithms are used to provide authentication and integrity of
packets to the network server and end-to-end encryption to the
application server. By providing these two levels, it becomes
possible to implement ‘multi-tenant’ shared networks without the
network operator having visibility of the users payload data.
The keys can be Activated By Personalisation (ABP) on the production
line or during commissioning, or can be Over-The-Air Activated (OTAA)
in the field. OTAA allows devices to be re-keyed if necessary.
Senet, Eutelsat &
Others Team to Deliver Terrestrial and Satellite LoRaWAN IoT
partnered with Eutelsat Communications, TrakAssure, and Wyld
Networks to bring seamlessly integrated and interoperable
terrestrial and satellite LoRaWAN IoT connectivity to customers
across the globe.
Through platform integrations, innovative sensor and hardware
design, collaborative service delivery, and compelling pricing,
the companies are targeting the global supply chain, including
container logistics and related asset tracking, as the first and
anchor applications. End-to-end managed network services
delivered through this collaboration will provide a new level of
visibility into supply chain operations.
tested, ELO nanosatellites (Eutelsat LEO for Objects) will
provide LoRaWAN coverage, allowing sensor-enabled devices to
transmit data, irrespective of their location, addressing gaps
in terrestrial network coverage across rural areas, shipping and
transportation routes, and other hard to reach areas'-(fm).
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