📜  LoRaWan和Sigfox之间的区别

📅  最后修改于: 2021-08-24 16:31:20             🧑  作者: Mango

前提条件–物联网中的数据链路层通信协议

物联网(物联网)中使用了不同的网络协议,以将服务提供给网络层。在物联网中建立设备之间的通信时,我们需要通信协议。在网络协议中,LPWAN是广泛使用的流行的标准通信协议之一。

低功耗广域网(LPWAN):
LPWAN也称为低功耗广域网。这是一个无线广域网,范围从2 km到1000 km。 SigFoxLoRaWAN是LPWAN技术的示例。 LoRaWAN和SigFox均实现了远程,低功耗分配的无线数据集成。但是,LoRaWAN和SigFox是不同的技术。

1. SigFox:
SigFox使用双向功能,即一个方向为DBPSK,另一方向为GFSK。其中DBPSK代表差分二进制相移键控,而GFSK代表高斯频移键控,SigFox及其合作伙伴在塔上设置接收器,并接收来自不同设备的不同节点的数据传输。

2. LoRaWAN:
LoRaWAN是MAC层协议,专为大规模公共网络而设计。 LoRaWAN是使用Semtech的LoRa技术构建的。但是重要的是,LoRa和LoRaWAN是两个不同的事物。 LoRa和LoraWAN属于非蜂窝LPWAN无线通信网络协议。

LoRaWan和Sigfox之间的区别:

S.NO Comparison SigFox LoRaWAN
01 Modulation It follows Binary pahse-shift keying modulation. LoRaWAN follows Chirp spread spectrum modulation. 
02 Bandwidth In SigFox the bandwidth is 100Hz. For LoRaWAN the bandwidth is 250KHz and 125KHz.
03 Maximum data rate It can send up to 100bps . In case of LoRaWAN the maximum data rate  is 50Kbps.
04 Functionality SigFox is limited bidirectional/Half-duplex LoRaWAN is fully bidirectional/ Half-Duplex
05 Maximum messages/day In SigFox the Uplink=140, Downlink =4. In LoRaWAN this facility is Unlimited.
06 Maximum payload length Uplink=12 bytes,
Downlink=8 bytes.
The maximum payload length is 243 bytes.
07 Range The Range of SigFox is 10 km in urban area, 40 km in rural area. The Range of LoRaWAN is 5 km in urban, 20 km in rural area respectively.
08 Interface Immunity The interface immunity is very high in SigFox network architecture. The interface immunity is same as in SigFox network architecture.
09 Authentication And Encryption It does not support the modern Encryption Technology. It supports (AES 128b) as Encryption Technology.
10 Topology It Follows Star topology. LoRaWAN follows Star-on-Stars topology.