wifi, WLAN, 802 11 what is the difference

1. It refers to the protocol, WLAN and WiFi are used.

2. WiFi is a technology that can connect personal computers, handheld devices (such as PDAs, mobile phones) and other terminals to each other wirelessly. WiFi technology, like Bluetooth technology, is a short-range wireless technology used in offices and homes.

3. WLAN is a local area network that works in or 5GHz frequency band and is composed of wireless mode, referred to as wireless LAN. WLAN communication systems are generally used in the same building as an alternative to wired LAN.

4. The main differences between WiFi and WLAN are as follows:

Difference 1] WiFi is included in WLAN, and the power of the transmitted signal is different, and the coverage range is different.

1) In terms of inclusion, WiFi is a standard of WLAN, and WiFi is included in WLAN, which is a new technology in the WLAN protocol.

2) The coverage range of WiFi can reach about 300 feet (about 90 meters), and the maximum WLAN (plus antenna) can reach 5km.

Difference 2] The range of wireless signals covered is different.

1) WLAN wireless Internet access actually includes WIFI wireless Internet access, WLAN wireless Internet coverage is wider.

2) Wifi is more suitable for smart small digital products such as smartphones and tablets.

A wireless network card refers to a wireless network card that adopts the wireless transmission protocol standard.

Its biggest feature is the speed increase, the theoretical rate can reach up to 600Mbps (the current mainstream in the industry is 300Mbps). It can work in two frequency bands, 5GHz and 5GHz. Backwards compatible.

It's wifi5.

It is a wireless network standard, developed by the IEEE Standards Association, which provides high-throughput wireless LAN WLAN, commonly known as 5Gwifi, through the 5GHz frequency band. At the same time, yes the heirs.

There are also different standards for WiFi, and the WiFi standard has gone through five generations of standards, which is the latest generation of standards, that is, the fifth generation of standards. Since the standard can reach gigabit wireless speeds, most wireless products report that mobile phones, laptops, tablets, and wireless routers adopt the standard.

Difference in WiFi transfer rate:

WiFi5 and WiFi6 We compare all gigabit routers, regardless of the network port 100 Gigabit. The WiFi5 standard supports up to 80MHz, while the WiFi6 channel can support up to 160MHz.

This means that the highway where cars travel has 4 lanes instead of 8 lanes, so that more cars can pass at the same time and there is no congestion. In terms of the size of wireless bandwidth support, it is also an important difference between WiFi6 and WiFi5.

Demo model: Huawei MateBookX&&TPLink router System version: Win10 is WiFi5, which is a wireless network standard, formulated by the IEEE Standards Association, and provides high-throughput wireless LAN WLAN through the 5GHz frequency band, commonly known as 5Gwifi.

At the same time, yes the heirs.

Features: Non-disruptive scalability. In most settings, the installation will override or older infrastructure.

Importantly, there is a need for transparent support, perhaps initially in backwards compatibility mode, or even as a sensor to detect unauthorized activity. These new APs can later be converted to configuration access.

Dual Gigabit Ethernet ports: Dual radios are common in APs, and 2 radios can overwhelm a single port. Deployment of two GBE ports should be considered in any dual radio AP.

Of course, it's unlikely that throughput will overwhelm Gigabit Ethernet (GBE) switch ports, as actual throughput may not be more than half of the peak. Please note: Quotient usually mentions the maximum possible speed, which is unlikely to be a problem with things like the propagation of a given radio frequency and other wireless transmissions.

Support dense deployments. Access points' wider channels (and 5GHz bands) and better radio modulation, combined with increasing capacity needs, mean we may need more APs. Given the inherent complexity here, the control function should be able to self-configure the AP, make critical decisions on wireless channel and transmit power allocation, and automatically meet other operational parameters.

Enhanced management capabilities. Overall management capabilities can be the main difference between performance and value. To do so, careful consideration needs to be given to how these innovations can improve not only throughput and reliability, but also IT management efficiency and total cost of ownership.

WiFi 6 is a naming convention proposed by the WiFi Alliance for wireless networking standards, which will be renamed Wifi 6, released in 2019, and renames the first two generations of technology and WiFi 4 and WiFi 5 respectively.

WiFi 6 has three advantages over WiFi 5, which are reflected in the transmission rate, coverage and power consumption that engineers are concerned about.

Thanks to the introduction of uplink MU-MIMO, 1024QAM modulation mode, 160MHz channel bandwidth, 8*8MIMO and other technologies, the maximum speed of WiFi 6 can be reached, that is, the transmission speed reached by the theoretical transmission speed. On the other hand, WiFi 6 borrows the OFDMA technology used in cellular networks, so that multiple terminals can transmit in parallel at the same time, without having to wait in line and compete with each other, thereby improving efficiency and reducing latency. In later use, WiFi 6 can better support the wireless access of various devices such as doorbells, refrigerators, and light bulbs in the home.

At present, the motherboards that support WiFi6 are:

Some ASUS X570 series motherboards come with an Intel Wi-Fi 6 AX200 wireless card directly onboard, including ROG Crosshair VIII Formula, ROG Crosshair VIII HERO (Wi-Fi), ROG Crosshair VIII Impact, ROG Strix X570-E Gaming, and ROG StirX X570-I Gaming. These products support Wi-Fi 6 technology and provide ultra-fast wireless connectivity for a better, faster, and more stable experience.

It is WiFi5, a wireless network standard, developed by the IEEE Standards Association, which provides high-throughput wireless LAN WLAN through the 5GHz frequency band, commonly known as 5Gwifi. At the same time, yes the heirs. <

Demo model: Huawei MateBookX&&TPLink router System version: Win10 is WiFi5, which is a wireless network standard, formulated by the IEEE Standards Association, and provides high-throughput wireless LAN WLAN through the 5GHz frequency band, commonly known as 5Gwifi.

At the same time, yes the heirs.

b g n indicates compatibility with two or three wireless protocols at the same time.

In fact, it refers to the wireless network protocol, which is subdivided into Shenhong and so on. These different wireless protocols have evolved from each other. It is a wireless LAN standard originally formulated by the IEEE, which is mainly used to solve the wireless access between users and user terminals in the office LAN and campus network, working in the frequency band, with a maximum rate of 54 megabytes, mainly used in long-distance wireless connections, working in the frequency band, with a maximum rate of 11 megabytes, working in the frequency band, with a maximum rate of 54 trillion and a maximum rate of 300 megabytes.

First, the subject is different.

11b g: The IEEE standard defines the frequency band. Yes successor.

2. WiFi: It is the trademark of the manufacturer of Wi-Fi Lianqing Tanmeng as the brand certification of the product, and it is a wireless LAN technology created in the IEEE standard.

Second, the transmission speed is different.

11b G: The device can only use the standard in the network environment, and its data rate can only reach 11Mbps.

2. WiFi: The wireless communication quality of transmission is not very good, the data security performance is worse than Bluetooth, and the transmission quality needs to be improved, but the transmission speed is very fast, which can reach 54Mbps.

Third, the advantages are different.

11B G: Using the same OFDM (Orthogonal Frequency Division Multiplexing Modulation) technology, it has a transmission rate of 5 times that of B, which is 54Mbps.

2. WiFi: The advantage is that it does not need wiring, and it can not be limited by wiring conditions, so it is very suitable for the needs of mobile office users, and because the transmitting signal power is less than 100MW, it is lower than the transmitting power of mobile phones.