In wireless networks, there are many concepts and protocols involved. To better help everyone have a clear concept, we will explain it from the perspective of classification.
1. According to the difference in network coverage: Wireless networks can be classified as
Wireless Wide Area Network (WWAN)
Wireless Local Area Network (WLAN)
Wireless Metropolitan Area Network (WMAN)
Wireless Personal Area Network (WPAN)
The relationship is shown in the following figure:
A wireless local area network (WLAN) utilizes wireless communication technology to enable different computer devices to be interconnected, forming a network system that allows for mutual communication, data transmission, and resource sharing. Wireless local area networks based on the IEEE802.11 standard allow for wireless connections in local area network environments using the 2.4GHz or 5GHz radio frequency bands in the ISM frequency band that do not require authorization.
Features: Supports multi-device users, offers high flexibility and mobility, and is not limited by wired environments.
Application scope: Very wide, such as enterprises, hospitals, stores, factories, schools and families, etc.
The main function of the wireless metropolitan area network is to enable the interconnection of the backbone and coverage to users. For example, broadband WMAN represented by the IEEE 802.16 series standards is mainly used for local multi-point connections. Wireless metropolitan area network technology is also referred to as “wimax technology” in the market. The Ministry of Information Industry has designated 3.5 GHz (3400-3430MHz, 3500-3530 MHz) and 5.8 GHz (5725-5850MHz) as dedicated frequency bands for wireless access in metropolitan area networks.
Wireless Wide Area Network (WWAN) is a communication method that uses wireless networks to connect local area networks (LANS) with extremely scattered physical distances. It is mainly used by operators for wireless coverage. The adopted standard is IEEE802.20.
The above is the knowledge explanation of “Classification of Wireless Networks” brought by Shenzhen HDV Phoelectron Technology Co., LTD. The communication products produced by this company cover:
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