lpwa standard

Traditional wireless communication technologies include cellular mobile communication technology and short-range wireless communication technology. However, with the development of IoT, LPWA communication technology lpwa standardcomes into being. Meanwhile, LPWA communication technology is also a new opportunity for the development of IoT industry. So what is LPWA communication technology? Let's find the answer together from this article.

Wireless Communication Technology LPWA

LPWA (Low Power Wide Area) low power consumption and wide area network, it solves the traditional enterprise network information can't effectively respond to the communication development problem of some IoT students, low power consumption to realize the communication engineering technology of wide area network, one of them is more familiar to the world is SigFox, LoRa, NB-IoT.

(1) SigFox

Sigfox is a communication technology owned by SigFox in France. Sigfox mainly builds low-power, low-cost wireless IoT private networks. Sigfox is also a LOWA network technology with high speed commercialization. Sigfox uses UNB technology. The transmit power level is very low and still maintains a stable data transmission connection, typically at only 100bps, and its network topology is a scalable high-capacity network with very low energy consumption, while maintaining a simple and easy-to-deploy star-based technology facility.

SigFox

Sigfox wireless links use the unlicensed ism RF band below g. The frequency varies according to national regulations and is widely used in Europe at 868mhz and in the US at 915mhz.

(2) LoRa

LoRa is a low-power WAN standard based on open source MAC layer protocol, and the sub-GHz band is more convenient for low-power long-distance communication. loRa is an ultra-long-distance wireless transmission solution based on spread spectrum technology adopted and promoted by Semtech in the United States. The solution changes the previous compromise between transmission distance and power consumption, providing users with a simple system that can achieve long distance, long range and high capacity. Then expand the sensor network!

LoRa

LoRa networks are also now being reformed and piloted or deployed in multiple parts of this world.

(3) NB-IoT

The last one to mention is NB-IoT, which is currently the hottest technology in the LPWA space (hottest in 2017-19, feeling hiccups in 2020). NB-IoT is a narrowband IoT built on cellular networks, consuming only broadband above 180 JHz, and can be deployed directly on GSM networks, UMTS networks and LTE networks, reducing deployment costs and enabling smooth upgrades.

Unlike sigfox and lora, nb-iot can be built directly on the operator's cellular network and, although the spectrum is sub GHz based, nb-iot requires licensing, while both sigfox and lora are license-free.

NB-IoT

In addition, NB-IoT focuses on the low-power, wide-coverage IoT market with wide coverage, multiple connections, low speed, low cost, low power consumption, and excellent architecture.