遮天辰东小说笔趣阁,盗墓笔记

parameter	Traditional WiFi	Bluetooth	Zigbee	LoRa WAN	NB-IOT	802.11ah (Halow)	LR-WiFI
transmission distance	100m~400m	15m~60m	50m~300m	300m~27Km	<20Km	<10Km	≤15Km
transmission speed	100~300Mbps	1M/24Mbps	250Kbps	0.3~50Kbps	20~127Kbps	<10Mbps	≤40Mbps
Operating frequency band	2.4G /5GHz	2.4GHz	2.4G/Sub1GHz	Sub 1GHz	Licensed	Sub 1GHz	2.3/2.4GHz
Node access capability	32	8	6.5W	6.5W	About 20W	8000	32
Network topology	Star/Relays/Mesh	Mesh	Mesh	Star	Star	Star	Star/Mesh
power waste	higher	Lower	low	Lower	Lower	Lower	commonly
Applicable scenario	General family Office environment	Proximity audio and control	Smart home Low speed equipment	Large scale low-speed networking	Wide range low-speed direct network access	Large range long-distance transmission	Long distance high rate transmission

parameter	index
working frequency	2.4GHz（ISM）
throughput	Adaptive, ≤ 40mbps
High transmitting power	20dBm
Measured transmission distance	3 ~ 5km (no ground to air interference, 2Mbps), 200 ~ 300m noisy ground environment in typical cities
working temperature	-20~70℃
power waste	RX：147mA@3.3V TX: 220mA @3.3V
Receiving sensitivity	-94dBm (Min)
delayed	Typical value 4ms
Package size	12.9mm12.2mm1.75mm ( LW H)
encryption	WPA2 AES
Network topology	Point to point, point to multipoint, mesh
Transmission technology	OFDM TDD LR-WiFi
diversity	2x2MIMO，ML，MRC
FEC	LDPC
Antenna interface	IPEX x2
Interface	USB2.0

The comparison data of throughput measured with RTL8188F on open ground at the same time is as follows

Test condition 1: As shown in the figure, 2.5dB gain antenna

Test condition 2: As shown in the open ground environment, one end of the antenna is 1.8m high, and the other end is 1.5m

Test method: Use iperf to send UDP packets to the peer to measure throughput, and use 4 channels of 2427MHz frequency