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China LoRa Application Alliance
China | Non-Governmental Organization (NGO)
The CLAA is an open NGO which aims to accelerate the development and adoption of the LoRa connectivity protocol. There are several duties that the CLAA is committed to:1. Understanding the needs of IIoT players committed to the LoRa Alliance and the CLAA2. Establishing a common standard for easy adoption and also, easy entry into the ecosystem3. Integration of cloud-based technologies in China and expansion of the network range4. Facilitate multi-lateral cooperations and strategic alliances to optimise benefits of utilising LoRa.
United States | Non-Governmental Organization (NGO)
LoRa Alliance is an open, non-profit association of members that believe the internet of things era is now. Their mission to standardize Low Power Wide Area Networks (LPWAN) being deployed around the world to enable Internet of Things (IoT), machine-to-machine (M2M), and smart city, and industrial applications.LoRaWAN? is a Low Power Wide Area Network (LPWAN) specification intended for wireless battery operated Things in regional, national or global network. LoRaWAN target key requirements of internet of things such as secure bi-directional communication, mobility and localization services. This standard will provide seamless interoperability among smart Things without the need of complex local installations and gives back the freedom to the user, developer, businesses enabling the roll out of Internet of Things.LoRaWAN network architecture is typically laid out in a star-of-stars topology in which gateways is a transparent bridge relaying messages between end-devices and a central network server in the backend. Gateways are connected to the network server via standard IP connections while end-devices use single-hop wireless communication to one or many gateways. All end-point communication is generally bi-directional, but also supports operation such as multicast enabling software upgrade over the air or other mass distribution messages to reduce the on air communication time.Communication between end-devices and gateways is spread out on different frequency channels and data rates. The selection of the data rate is a trade-off between communication range and message duration. Due to the spread spectrum technology, communications with different data rates do not interfere with each other and create a set of "virtual" channels increasing the capacity of the gateway. LoRaWAN data rates range from 0.3 kbps to 50 kbps. To maximize both battery life of the end-devices and overall network capacity, the LoRaWAN network server is managing the data rate and RF output for each end-device individually by means of an adaptive data rate (ADR) scheme.
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