Aside from support for ultra-low latency applications, another driver of edge computing in the 5G era is the potential increase in the number of devices seeking to communicate over a mobile network.
Around 10 percent of enterprise-generated data today is created and processed outside a traditional centralized data center or cloud. By 2022, Gartner predicts this figure will reach 75 percent, says Santhosh Rao, principal research analyst at Gartner.
That suggests the magnitude of the demand for edge computing and fog computing facilities. When 75 percent of enterprise data has be processed outside a cloud or enteprise main computing center, an awful lot of edge computing will have to happen.
Gartner defines edge computing as data processing at or near the source of data generation. Edge computing serves as the decentralized extension of the campus networks, cellular networks, data center networks or the cloud.
Connection density is part of the International Telecommunications Union specification for IMT-2020 (5G) because so many more devices are expected to be connected to networks when internet of things appliances and sensors proliferate. The 5G standard stipulates that 5G networks must support up to one million connected devices per square kilometer (0.38 square miles).
That increase in IoT devices to be supported also is a driver for thinking about edge and fog computing. With so many additional devices communicating with servers, it will be quite helpful to minimize the amount of traffic that has to cross network backbones to reach cloud computing centers.
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