什么是802.11无线局域网（WLAN）标准？

2023-11-15

Wireless technologies are the center of daily life. Wireless networks are used to transfer data between different devices. There are different wireless technologies where WLAN or WiFi is the most popular. In this tutorial, we will learn 802.11 WLAN technologies.

无线技术是日常生活的中心。无线网络用于在不同设备之间传输数据。 WLAN或WiFi最流行的是不同的无线技术。在本教程中，我们将学习802.11 WLAN技术。

IEEE 802.1无线局域网工作组 (IEEE 802.1 Wireless Local Area Networks Working Group)

Where comes the 802.1 WLAN term? It is a standard number created by IEEE and assigned for the WiFi network technologies. IEEE 802.1 Wireless Local Area Networks (WLAN) standard is management by the Working group. This working group consisting of experts, academics, vendors which drive the future of the standard.

802.1 WLAN术语从何而来？这是由IEEE创建并分配给WiFi网络技术的标准编号。 IEEE 802.1无线局域网(WLAN)标准由工作组进行管理。这个工作组由专家，学者和推动标准未来的供应商组成。

http://www.ieee802.org/11/

IEEE 802.1 Wireless Local Area Networks Working Group

Wi-Fi世代(Wi-Fi Generations)

Wifi or WLAN standards are created very fast in recent years. Especially the usage popularity and needs of the customers make things happen faster. In the first years of the standards, it was slow and there were very few standards but currently, there are a lot of standards. WiFi standards are grouped in generations to name them better. Wifi standard generations are named with numbers like WiFi 1, WiFi 2, etc. In general newer generations will have stable, faster, and lower energy consumption standards with the advance of technology. WiFi family, standard, and working group number of the WiFi or WLAN. All WiFi or WLAN related standards are defined under this number as we will learn them below. 802.11 standards generally use 2.4 and 5.0 GHz with some FHSS and DSSS signaling techniques.

近年来，Wifi或WLAN标准的建立速度非常快。尤其是用户的使用普及和需求使事情发生得更快。在标准的头几年，它很慢，几乎没有标准，但是目前有很多标准。 WiFi标准经过几代人分组，以更好地命名它们。 Wifi标准代以诸如WiFi 1，WiFi 2等数字命名。通常，随着技术的进步，新一代将具有稳定，更快和更低的能耗标准。 WiFi或WLAN的WiFi系列，标准和工作组编号。所有与WiFi或WLAN相关的标准都在此数字下定义，我们将在下面了解它们。 802.11标准通常使用2.4 GHz和5.0 GHz以及某些FHSS和DSSS信令技术。

Wi-Fi 1(Wi-Fi 1)

802.11b is named as Wi-Fi 1 generation.

802.11b被称为Wi-Fi 1代。

Wi-Fi 2 (Wi-Fi 2)

802.11a is named as Wi-Fi 2 generation.

802.11a被称为Wi-Fi 2代。

Wi-Fi 3 (Wi-Fi 3)

802.11g is named as Wi-Fi 3 generation.

802.11g被称为Wi-Fi 3代。

Wi-Fi 4 (Wi-Fi 4)

802.11n is named as Wi-Fi 4 generation.

802.11n被称为Wi-Fi 4代。

Wi-Fi 5 (Wi-Fi 5)

802.11ac is named as Wi-Fi 5 generation.

802.11ac被称为Wi-Fi 5代。

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