WLAN WiFi Wimax What are the differences between them

WLAN stands for Wireless Local Area Network, which is intuitively a local area network composed of no cables. WiFi accurately refers to a technology, the technology of networking with radio waves, and now it is also commonly used to indicate that electronic devices can be connected to wireless network Wimax is this standard, which is a new type of high-speed wireless network access technology, with a large access distance and QoS

The differences between WiFi and WiMAX are: different origins, different communication protocols, and different transmissions.

First, the origin is different.

1. WiFi: The Wi-Fi Alliance was established in 1999 and officially changed its name to the Wi-Fi Alliance in October 2002.

2. Wimax: WiMAX was proposed by the WiMAX Forum and took shape in June 2001.

Second, the communication protocol is different.

1. WIFI: WIFI chooses the IEEE communication protocol mainly for the purpose of short-distance regional transmission.

2. WiMAX: WiMAX has chosen the version of 256 CarrierofDM, which can help telecom operators and Internet service providers build the last mile of wireless network with a wider frequency band and longer transmission distance.

3. Transmission is different.

1. WiFi: The transmission rate of WiFi is faster than that of Wimax, and the transmission range is larger.

2. Wimax: The transmission rate of WiMAX is faster than that of WiFi, and the transmission range and distance are larger.

Encyclopedia – wifi

Encyclopedia – Wimax

Actually, I don't quite understand, but Wimax doesn't seem to be used in Chinese mainland.

WiFi and WiMAX are two different technologies, and WLAN is a wireless local area network. WLAN is generally a wireless LAN formed by devices using WiFi technology, and it is more common for home use. Of course, most of the wireless campuses and so on are also WLAN, and WiFi is also used, but the effect is very average.

WiMAX is a wireless metropolitan area network technology, with long wireless coverage, high bandwidth and excellent communication quality. In addition, WiMAX can also use both frequencies for WiMAX or public frequencies. Due to the large number of users of these two frequency segments, the interference is more serious.

Wimax can use other frequencies such as and so on.

WiFi is a wireless LAN based technology.

WiMAX is based on wireless LAN technology.

WLAN is an umbrella term for wireless LAN technology.

The first two are specific wireless technologies The latter is an abbreviation for wireless technology, wifi is a wireless LAN technology derived from traditional local area networks, and the range is often relatively smallWimax is a wireless LAN technology derived from modern local area networks (relatively close to the concept of metropolitan area networks), and the range is larger.

But in fact, WiMAX is actually a wireless signal amplifier in the range of the city, as if there are many WiFi hotspots in the city, the essence is also WiFi technology, and it was also used when it was first formed80211 of the Agreement. Since 802...

11 The bandwidth limitation of the 11th protocol for point-to-multipoint is not suitable for the current expanding scale of wireless LAN technology, so the new protocol was formulated.

Refer to Ma Lixiang's "Local Area Network in Metropolitan Area Network".

WiFi is a wireless LAN technology, based on the protocol, the frequency is, is a public frequency, does not need to apply for a special application. Because its transmission distance is close (about 100 meters), it needs to be visible and unobstructed, and the maximum bandwidth is 54m, so it is more suitable for applications to build wireless LAN in a small area.

WiMAX is a wireless metropolitan area network, protocol-based, frequency from, is a proprietary frequency, and can only be applied to the local radio administration. The transmission distance is long (the data transmission distance can reach up to 50 kilometers), and the bandwidth can be up to 3G by the ITU (International Telecommunication Union). On December 22, 2010, the International Telecommunication Union (ITU) officially included WiMAX in the 4G standard.

As for WLAN, it is a general term for wireless local area network, and you can also think of it as WiFi, at least in China, which is how confusing operators are.

WiMAX and Wi-Fi are both defined by the IEEE standard and are wireless technologies.

The difference is that the frequencies defined are different, WiMAX is defined as ,,, for cellular macro coverage, and the standard is IEEE, a kind of 4G standard. WiFi is mainly used for home or hotspot coverage, the coverage is short, and it is currently more popular, defined as IEEE and so on.

WiMAX is a 4G network. Not in China at the moment.

WiFi is wireless network.

The meaning of the two is not the same.

Hope you are satisfied.