There is so much talk,buzz about 5G in the media, social media, and curiosity on what all will be the features of it. Amid so much hype about IoT (Internet of Things),news about Smart Homes, Smart Cities, at few places’ labs have been set up about IoT. You can understand IoT by imagining a fridge which can give alerts about some daily item like butter/bread needing replenishment &hence placing order automatically from the grocery store without the human intervention. Similarly, the home AC & water heater getting switched on when the owner is leaving for home from the office. All this could be possible through the 5G deployment.
The next in the row -5G Technology is going to be launched in 2020 in Tokyo Olympics. Japan has decided to carry out live broadcasting of the Olympics Games through 5G. Hence there are extensive trials & testing. The testing is taking place in many countries like USA, France, Japan, China, Germany etc. There is a test bed in IIT Delhi established by Ericsson.
Before digging in further, it is important to know the deficiencies of 4G first which is currently in use. After all, it is pertinent to know the need of 5G and also the high data speeds.
The foremost deficiency of 4G is- it’s comparatively low data speed- we are able to achieve peak data speed up to about 24 Mbps on our mobile handsets over the air interface. Moreover, the signal strength & data speed reduces further inside the buildings in the areas like in bathrooms, basement etc. Hence, there is the need of improvement in Indoor coverage, reliability of network.
Well! how to address the weakness of 4G? The 5G Technology has the answer.While setting the following objectives for 5G –
• 1-10Gbps data rates to subscribers or UE (user equipment), endpoints
• One (01) millisecond end-to-end round-trip delay (latency)
• 1000x bandwidth per unit area as compared to the present
• 10-100x number of connected devices as compared current usage
• 99.999% availability (perception to the user)
• 100% coverage (perception to the user)
• 90% reduction in network energy consumption/usage as compared to 4G
• Expected up to ten-year battery life for low power, machine-type devices;
that technology seems to be more suitable to address the growing relevant needs of the future generations.
The 5G spectrum has been identified around 6GHz, 24 GHz, 40 GHz. The development for the it under process to meet all the above objectives.
5G is likely to bring home- high data rates, download speeds, increased bandwidth on networks for backward connectivity from eNode B to MSC (Mobile Switching Center).
The research is under full swing to come out with more detailed features on Internet of things (IoT). There are,and will be more smart homes, smart cities, smart offices in function in near future. Moreover, testing process is also underway to develop Autonomous vehicles/driver less cars.
First, the 5G enabled handsets will be made available by the mid of year 2019.
Another segment to be catered is improvement in batteries. Presently we are using Lithium Ion batteries which have a life span of about 1100 to 1200 cycles of charging & discharging which is equivalent to three years of a battery life. Also, the Lithium ion battery is costly, heavy and slow charging rate. Hence considerable improvement is required in battery technology too.
Meanwhile with the increased and continued use of Techno-enabled gadgets around human will cause health harms too. Due to emission of nonstop radiation, electromagnetic noise pollution will increase. This may further exaggerate the associated health hazards. Therefore, all human being should take adequate precautions while using the instruments for a long duration. It is also important to keep the radiating device away from the children. Till the time the new findings arrive, we must ensure that the technology create just a win-win situation to improve convenience and bring efficiency to our work process.
Col.(Retd) Subash Chander
Department of ECE
IILMCET, Greater Noida