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IEEE 802.15.4w-2020
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IEEE 802.15.4w-2020 IEEE Standard for Low-Rate Wireless Networks--Amendment 2: Low Power Wide Area Network (LPWAN) Extension to the Low-Energy Critical Infrastructure Monitoring (LECIM) Physical Layer (PHY)
Amendment by IEEE, 09/25/2020
Full Description
Scope
This amendment defines a Low Power Wide Area Network (LPWAN) extension to the IEEE Std 802.15.4 Low Energy, Critical Infrastructure Monitoring (LECIM) PHY layer to cover network cell radii of typically 10-15 km in rural areas. It uses the LECIM PHY Frequency Shift Keying (FSK) modulation schemes with extensions to lower bit-rates (e.g. payload bit-rate typically <30 kb/s). Additionally, it extends the frequency bands to additional sub-GHz unlicensed and licensed frequency bands to cover the market demand. For improved data integrity in channels with high levels of interference, it defines mechanisms for the fragmented transmission of Forward Error Correction (FEC) code-words, as well as time and frequency patterns for the transmission of the fragments. Modifications to the Medium Access Control (MAC) layer, needed to support this PHY extension, are defined.Abstract
Amendment Standard - Active.The existing low-energy critical infrastructure monitoring (LECIM) frequency shift keying (FSK) physical layer of IEEE Std 802.15.4-2020 is extended to be more robust in the presence of interference and achieve higher link budgets for applications in low power wide area networks (LPWAN). Lower symbol rates and a split mode with low-rate forward error correction (FEC) codes are introduced to achieve this goal.
M00091044
2021-02-20
New product
IEEE 802.15.4w-2020 IEEE Standard for Low-Rate Wireless Networks--Amendment 2: Low Power Wide Area Network (LPWAN) Extension to the Low-Energy Critical Infrastructure Monitoring (LECIM) Physical Layer (PHY)
Amendment by IEEE, 09/25/2020