5G wireless network technology designed to improve cellular broadband bandwidth, capacity and reliability. Are you ready to make your 4G world behind it?
You may have heard 5G, the new cellular technology is expected to bring great changes for mobile and fixed wireless data network. You might want to know is the difference between existing networks 5G 4G cellular standards, as well as new technologies which will bring the benefits of enterprise and individual users.
What is 5G?
As the latest progress in the evolution of cellular networks, 5G will deploy thousands of small antennas on cellular towers, telephone poles, lamp posts, buildings, and other public and private buildings. This technique is intended to complement rather than replace the current 4G networks, cellular data transmission rate is expected to accelerate from 100 Mbps to 10 Gbps or even more, that will make even the fastest optical fiber line is also competitive next-generation wireless technology The internet.
Overall, 5G should significantly improve cellular broadband bandwidth, capacity and reliability, far more than the previous generation of change. The main operators have been in the development of 5G strategy. In the United States, the top four carriers -AT & T, Sprint, T- Mobile and Verizon will be launched 5G network in 2019 and 2020.
In the field of mobile phones, Verizon and Samsung collaboration creates a 5G smartphone, they plan to begin marketing in the first half of 2019. But Apple is not the company launched its 5G phone in 2020. Internal and offices, 5G technology is expected to provide serious competition will be based cable and telephone Internet Service Provider (ISP).
4G and 5G performance
5G and the new radio millimeter waveband hitherto rarely used in the range of 30 GHz to 300 GHz,. Current 4G network operating in the frequencies below 6GHz.
Low latency is one of the most important attributes 5G, so the technology is ideal for rapid response to critical applications, such as remote vehicle control. Under ideal conditions, a delay of less than 5G network milliseconds. 4G delay due to a cell and carrier varies with the carrier. In general, 5G estimated delay 60-120 times faster than the average 4G.
Over time, 5G is expected by providing speed and low latency fiber similar functions to advance the wireless network to virtually any location. In terms of peak velocity, 5G 4G faster than about 20 times. The new technology also provides the minimum peak download speeds of 20 Gb / s (as 4G rate is only 1 Gb / s). In general, fixed site users (such as office and home) the rate will be higher than the number of mobile users.
5G corporate influence
despite the lack of full support for the rapid expansion of 4G needed innovation mobile and fixed speed, capacity and flexibility, commitment and 5G wireless sensors, vehicle-to-vehicle communication technology, intelligent traffic lights, smart grid, mobile devices without collaboration seam wearable devices, intelligent home devices, and other cutting-edge technologies.
Most observers also expected to help 5G Things (IoT) finally realize the potential of its long-term commitment. Because networking applications typically require a large amount of data collected from a large number of devices and sensors, this technique requires efficient network for data collection, processing, transmission, control, and real-time analysis. 5G high-speed, low-cost, ubiquitous and flexibility make it a strong choice things of the network.
5G also has the potential to manufacture smart cities, this is another highly anticipated technology but not yet implemented, is practical in the real world. 5G speed and ultra-low latency critical applications for smart sensor support cities, including public transport scheduling, crime detection and reporting, intelligent street lighting and monitoring air quality, water, parking, traffic, sewer and garbage collection and other objects.
Within the enterprise, 5G is expected to lead to the development of things seamless workplace environment to support real-time collaboration between people and devices. The new Augmented Reality (AR) 5G connection between the user and virtual reality (VR) technology promises to allow on a variety of tasks at any time / anywhere real-time collaboration to achieve more effective and dispersed workforce, it is impossible to support 4G network.
5G is also expected to help various telemedicine applications (such as remote patient monitoring and care) into the mainstream. In the hospital environment, the technology is expected to allow the patient anywhere in the world surgeon remote operation, which in high-latency 4G is impossible.
5G is also expected to provide support for low-latency cloud computing, allowing real-time processing of complex tasks, and provide a lot of processing power and virtually unlimited data storage for home and business users, lower prices.
5G security issues
also have rights also been given a great responsibility. Although generally considered inferior to 4G 5G safe, but fears of new technologies and applications support rate may create new security vulnerabilities, service providers and adopters need to solve these problems.
Biggest concern is, 5G by supporting new services, users and devices, will increase the overall attack surface, and provide access to new methods tampering with the network and workplace environment for assailant. Another troubling concern is that higher data rates 5G will be more powerful and more efficient distributed denial of service (DDoS) attack to open the way. Since DDoS attacks using a plurality of data directed to the target system device, which is overwhelming to the point of failure, so a higher data rate may make such attacks more aggressive and destructive.
Things improved support 5G drawback is to provide enhanced performance and functionality of large network (such as edge processing) will become an attractive target for attackers. In addition, a new generation of mobile and fixed support 5G technology will provide a wider range of potential attackers target selection, including autonomous vehicles, smart home / City assets and office, industrial and medical equipment.
5G future
"for 5G hardware, software and networks, the industry seems to be general take reasonable attitude, while paying close attention to the future of innovation and new use cases," business and technology consulting firm IT security risk and head of Jon Zayicek representation. Cask. "5G enough early in its life cycle, with increasing adoption rates, manage and mitigate risk."
Excerpt from NETWORKWORD:
https://www.networkworld.com/article/3330603/5g-versus-4g-how ? the -speed-Latency-and-the Application-Support-differ.html UPD = 1559204945870
Ielab teacher: Zhao Shao Lei
Reprinted: http://www.ie-lab.cn/