Читать книгу Handbook of Intelligent Computing and Optimization for Sustainable Development - Группа авторов - Страница 132

Presently, 5G has been started to be deployed all over the world and formed the basis for an intelligent wireless network. Now, scientific community with industry stakeholders is working toward formalizing the roadmap for 6G. 6G network is considered to be transforming from “connected things” to “connected intelligence” [52]. Some of the key parameter indicators are as follows [35, 52]:

 • Extreme data rates: Peak data rate up to 1 Tb/s for both indoor and outdoor.

 • Enhanced spectral efficiency and coverage: Very broad frequency bands (e.g., 73–140 GHz and 1–3 THz) and advanced massive-MIMO technology.

 • Enhanced energy efficiency: Very high energy efficiency, with the ability to support battery-free IoT devices.

 • Ultra-low latency; less than 1 ms end-to-end latency.

 • Ubiquitous always-on broadband global network coverage by integrating terrestrial wireless with satellite systems. A significant role played by unmanned aerial vehicles (UAVs) and low-Earth orbit (LEO) microsatellites to cover the deep fade and remotely inaccessible regions. This will also help in offloading the emergency network failure due to natural disaster and public gathering.

 • Connected intelligence with ML capability: 5G forms the basis for the intelligent network, 6G will utilize the power of ML algorithms to enhance the efficiency of traditional model-based algorithms for signal processing.

Next-generation network to achieve required key parameters would be adding new radio interfaces like TeraHertz communication, intelligent reflecting surface, extremely large aperture arrays and joint radar communication for connecting to the heterogeneous hardware/software networks. Future radio access network would be based on what is called AI-enabled intelligent radio system. In AI-enabled radio system on the fly, the hardware and software up gradation would be expected based on DNN.