Whether it is our office area, or in the home environment, or even out in public places, WiFi has now become an essential "standard". From shopping malls to buses, from cafes to bathrooms, the existence of wireless networks has fully integrated into our lives. Remember when you first wanted to go online? Telephone lines, modems, network cables, and dialing tones are no less. Now we can easily connect to the Internet with just one finger, and the rapid development of mobile devices has allowed us to get rid of the shackles of the Internet.
Is the era of comprehensive wireless networks coming soon?
In the age of technological explosion, our lifestyle has changed dramatically in the past decade. Has the PC in your home been inactive for a long time? The rapid development of devices such as smart phones, tablets, and laptops has caused traditional PCs to retreat to the second line. From time to time, we need to use a mobile device to conduct web browsing, online games, watching online videos, social chat, and other actions that require a PC. What's more, traditional PCs require network cable connections to access the Internet; now, our mobile devices can only travel the Internet world through WiFi.
Connect smart home devices
Smart TVs, internet boxes, air purifiers, smart light bulbs, smart sockets, smart cameras... More and more devices in the home need WiFi connectivity, and wireless networks have become an essential part of the home. It can be said that in the home use environment, the wired network has completely retreated to the second line and was replaced by a wireless network. In the enterprise, with the popularity of BYOD (bring its own equipment), deploying wireless networks has become an urgent task for enterprises, and office areas must also have full WiFi coverage. However, the use of wired networks is still the main force in the enterprise. At present, it seems that wireless networks have not replaced wired networks in enterprises.
Insert a cable to allow mobile devices to access the Internet
Seeing the rapid development of wireless networks, we cannot help asking whether wireless networks can replace wired networks. Think of it here, and quickly look at your home wireless router! Why let everyone look at their wireless router? Yes, the WAN port on the wireless router is plugged into the network cable from the “cat†or network port to enable the mobile device in the home to access the Internet. In addition, if wireless APs or wireless routers in an enterprise want to provide Internet access for office areas, they must also use network cables to connect to ACs or switches in the equipment room.
Wireless network is indispensable
Through a simple example above, we can see that the wireless network and wired network are still in a dependent relationship. It may be very convenient for us to use the wireless network in the "foreground"; but at the "backstage" level, the wired network is still playing a role in connecting us to the Internet. However, as technology develops faster and faster, wireless networks are likely to replace wired networks in the future. Now, let's take a look at what advantages wireless networks have over wired networks.
What are the advantages of wireless networks today?
Compared to the wired network hidden behind the scenes, the wireless network can now be said to be prestige. No matter if it is work or life, nobody can do without it. So, why do we get more and more accustomed to using WiFi to access the Internet, and gradually abandoned the wired network connection? The first of these is that wireless networks have superior mobility. As long as it is within the signal coverage of wireless routers or wireless APs, we can go online anywhere in this range. In the study, in the bedroom, and even in the bathroom, we only need to hold a mobile device to access the Internet. We can completely put aside the restrictions of the Internet.
Cables have become a shackle
In addition, the convenience of the wireless network is very strong. When we have Internet access requirements outdoors, on trains, and in cars, it is impossible to find network cables and plug them into our computers. Moreover, only the network cable can not let the mobile devices in our hands access the Internet. At this time, we can turn on the smart phone's hotspot function, or use a 3G/4G router to quickly convert the operator's network into a WiFi signal, providing Internet support for our tablet, laptop, and other mobile devices.
Wireless transmission rate has exceeded Gigabit wired transmission rate
Third, the speed of wireless networks is changing the way we live and play. The gradual popularization of 11ac wireless technology has greatly increased the wireless transmission rate. Currently, the mainstream 11n wireless routers in the market have a wireless transmission rate of 300 Mbps, and some can reach 450 Mbps or even 1000 Mbps. The wireless transmission rate of 11ac wireless routers can reach a maximum of 2,167 Mbps, which exceeds the transmission speed of gigabit cable networks. 11ac wireless technology allows users to perform high-speed intranet wireless transmission in the LAN. Whether it is accessing the NAS to watch high-definition movies or transferring large files, it can be completed faster. And it also provides the technical foundation for the future family's smart lifestyle and entertainment.
Provide new ways for merchants to market
Wireless networks also have many benefits for business users. In addition to providing Internet access services for mobile devices in the office area, surveillance cameras, sensors, and other devices in enterprises and campuses can also be connected via WiFi to provide the technology foundation for the Internet of Things. In addition, more and more merchants adopt "WiFi marketing" in this innovative way. After the consumer scans the QR code of the merchant or connects to the free WiFi provided by the merchant, the merchant can push his own information to the consumer through the authentication interface or pay attention to the WeChat public number, so that the wireless network becomes a new marketing tool.
Is the wireless network irreversible? Is it safe?
There is no absolute security for anything. We can only guarantee its relative safety. Using WiFi to access the Internet has now become a normal thing. Because of our dependence on it, wireless networks also have many hidden risks. Among them, greedy cheap connection to free WiFi is a very unsafe act. Especially when it comes to public places such as Starbucks, McDonald's, and shopping malls, everyone can't wait to connect wireless hotspots in public places. Even some friends even take pleasure in using "duowang.com", thinking that even connecting to someone else's wireless network is cheaper.
CCTV exposure screen shocking
Especially when there are many wireless hotspots in public places, lawbreakers often use fake hotspots to allow users to “hook†themselves. In particular, when we searched for wireless networks, we saw that the name of the wireless network established by lawbreakers was the same as that of merchants, and it was difficult for ordinary users to screen them. For some operator's customized machine users, it is often connected to the wireless hotspot of the operator's name. Once this is a criminal wireless hotspot, the user's loss is incalculable.
Remember this case? (Source: Internet)
To protect the security of wireless networks, we suggest that we should avoid using wireless networks in public places. If it is necessary to use it, it is necessary to check the details of the wireless network with the merchant in order to avoid accessing the counterfeit hotspot. The mobile device in our hands should not be rooted or jailbroken. Because after the Root and jailbreak, the original system defense system will basically all fail, and even if our equipment is controlled, it will not be easy to find out. Finally, if there are demand for payment, online banking, etc., we can switch to the operator's network to increase the security factor.
Home WiFi protection is also very important
In addition, home wireless network protection is also very important. For home wireless routers, it is often necessary to check whether the system version is upgraded. Upgrading it to the latest version can plug loopholes that criminals can use. Our WiFi password can best be set to "digital + English letters + symbols" in this form, increasing the difficulty of breaking the lawbreakers. Finally, the password of our router background management also needs to be modified into the form of "digital + English letters + symbols" to prevent the router itself from being controlled, thus allowing lawbreakers to hijack our WiFi network.
Sooner or later to say goodbye? The wireless network is worth looking forward to
We can often see a variety of cool future technologies in the movies. We can draw on various windows and access information on the Internet anytime, anywhere. Obviously, there is no need for network cable support. However, although we are now accustomed to using wireless networks, it still needs a wired network to support it. Moreover, if we want to communicate with the world, we also need to rely on submarine cables to complete. Use a wireless network to communicate globally? It is impossible to realize now.
Google balloon at work
What about the future? The tech giants have already begun such attempts. The Google balloon project, Facebook's thousands of UAVs are available for global Internet access, and SpaceX provides Internet access through the launch of satellites. Each of the giants in the tech industry must provide Internet services for the world. Once this great idea is realized, it will connect all human beings together. It is truly the right to turn each nation into a villager in a global village, and we can see that these plans are all connecting people and the world together through wireless networks, completely abandoning the traditional way of laying fiber optic cable.
Interference between wireless devices is getting more and more serious
Faster wireless transmission rates and better coverage of wireless signals are the key to the further development of wireless networks in the future. Now that we have more and more mobile devices, there has been a problem of co-channel interference in wireless signals. In particular, the 2.4 GHz band has been very congested, which has had a bad influence on the wireless network transmission rate and the stability of wireless signals. Although the current popularity of the 5GHz band has eased this phenomenon, the weakness of the 5GHz signal in passing through the wall is obvious. How to have a more stable, faster and wider wireless network is a difficult problem for users.
Wireless Internet access via satellite + drone
The future of wireless networks is undoubtedly bright. In the future, we may really completely abandon the cable and rely on WiFi to be able to connect to the Internet. Just like our mobile phone, as long as there is a signal, you can access the Internet. Wireless networks will further change our way of life. Family entertainment and lifestyles will be subverted; intranet collaboration will change; even in the Internet of Things, all devices will be connected wirelessly. together.
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