How to build a wireless network at the lowest cost

In 1990s, being able to access the Internet was the wish of many friends. Since the 21st Century, how to get a better speed has become the goal of the majority of users. However, just a few years have passed. Since last year, wireless Networks have entered the eyes of common users. I believe many users have considered the wireless networks. Especially for ordinary household and small-and medium-sized enterprise users, wired networks need to be affected by factors such as complex cabling and network cable limitations on the Internet, building a wireless network becomes a fashion.

For enterprise and home user groups to build wireless networks, you need to buy wireless routers first. In addition, because desktops are still selected by many users, while desktops and half of laptops are not equipped with wireless NICs, wireless NICs are also required.

In terms of the selection of wireless routers and wireless NICs, the most important thing is the transmission speed. Currently, wireless networks include IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, and IEEE 802.11n, generally, new transmission protocols are more compatible with earlier versions. For example, IEEE 802.11n is compatible with the previous versions. At present, IEEE 802.11a wireless network standards have been eliminated, the other three types can reach 11 Mbps, 54 Mbps, and Mbps respectively in terms of speed. Of course, the price will also increase as the speed increases. In addition, this speed is only a theoretical speed, the same standard wireless router and wireless network card must be used together to achieve the best status.

In addition to the wireless transmission standard, you need to pay attention to the interface when selecting a wireless network card. Currently, the mainstream wireless network cards on the market mainly include USB, PCI, PCMCIA, and CarIa, the wireless Nic of the USB interface can be used for desktops and laptops. It is also the most convenient to install. You only need to insert it into the USB interface and set the corresponding parameters; the wireless Nic of the PCI interface can only be applied to desktops with the PCI interface. You need to remove the chassis and insert the PCI interface, and set the corresponding parameters to access the Internet, the adjustment of the antenna is also limited, but it has a low price feature. PCMCIA and cartana are mainly used in laptops, and you only need to insert the corresponding interface to the NIC, the usage is not much different from that of the USB wireless Nic. In terms of the interface selection of the wireless Nic, you can choose according to your actual needs. If you want to pass through the laptop and desktop, I suggest you purchase a wireless Nic for the USB interface.

After you have selected a wireless router and a wireless network card, the following figure shows how to build a wireless network. Due to the weak capability of wireless network signal penetrating the reinforced wall, I suggest you try to put the wireless router in a relatively empty space, when receiving signals, wireless receiving devices are advised not to pass through the two sides of the wall for ease. It is best to deploy wireless routers in ordinary homes in the living room. For small and medium-sized enterprises, they can directly deploy routers in large offices with a large number of users.

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