Analysis on the working principle of the Golden wave routing Wireless Network

Although we all use wireless networks for office Internet access, many people are still not clear about the principles of the wireless network. This article will give you some knowledge about this, I believe that it will help you set up a wireless network. Www.2cto.com

1. wireless networks are a LAN that allows computers to send and receive data anywhere within the coverage of wireless base stations. At present, Wi-Fi is considered synonymous with wireless networks, however, there is a fundamental difference between the two. Wi-Fi is an authentication standard for wireless LAN products, while WLAN is a technical standard for wireless LAN. 2. Wi-Fi is fully called Wireless Fidelity, which is a Wireless compatibility authentication. It is not only applicable to a certain WLAN specification, but also for the entire WLAN field, due to the diversity of wireless technology standards, the frequency bands and frequency modulation methods are different, resulting in the incompatibility of various standard wireless network devices, this has brought a lot of uncertainties to the development of wireless access technology. Therefore, the Wi-Fi standard is introduced to unify and standardize the product certification of the entire wireless network market. 3. With the rapid development of networks, wireless networks have won the recognition of many users for their ease of installation and flexibility. As a supplement to wired LAN, however, wireless network products are vulnerable to interference, unstable performance, low transmission rate, and difficult to upgrade. The products of different vendors are also incompatible, which limits the further development of wireless LAN, so the wireless LAN Standard came into being. This is what we often call the IEEE 802.11 standard.
4. the IEEE 802.11 standard is a wireless LAN standard developed by IEEE. It mainly specifies the physical layer and the media access control layer of the network, and the MAC layer is the focus, products of different vendors can operate on each other on the same physical layer. In this way, the two main uses of the wireless LAN, multi-point access and multi-network segment interconnection are easier to achieve at a low cost, thus opening the way for the further popularization of the wireless LAN. 5. The early standard IEEE 802.11 data transmission rate was 2 Mbps. After improvement, IEEE 802.11b with a transmission rate of 11 Mbps was also introduced. However, with the development of the network, especially the frequent use of high-bandwidth network applications such as IP voice and video data streams, the IEEE 802.11b standard data transmission rate of 11 Mbps cannot help, so, IEEE 802.11g with a transmission rate of up to 54Mbps was born. Www.2cto.com
6. IEEE 802.11g also uses orthogonal multi-task division and OFDM module design, which is the secret of its high-speed transmission of 54Mbps, the working frequency of IEEE 802.11g is not 5.2 GHz of IEEE 802.11a. Instead, it sticks to the GHz band consistent with IEEE 802.11b, the compatibility concerns of IEEE 802.11b users have been well solved. IEEE 802.11g provides a smooth transition. VII. The signal attenuation in the GHz band operated by IEEE 802.11g is not as severe as that in the GHz band of IEEE 802.11a. Additionally, IEEE 802.11g has better penetration capability and can adapt to more complex use environments, however, inherent limitations make IEEE 802.11g and IEEE 802.11b vulnerable to interference from microwave, wireless phones, and other devices, the IEEE 802.11g signal is much smaller than the IEEE 802.11b signal. The latest 802.11n standard on the market, with a speed of up to Mbps, is the next-generation wireless network technology, provides the speed, range, and reliability required by applications most sensitive to bandwidth.