Skip to main content

Posts

Showing posts from August, 2016

5G ! Future of Mobile Networks

What Is 5G, Exactly?
5G is a term used to describe the forthcoming fifth generation of mobile network technology. Right now, it doesn't signify any particular type of technology. While 4G has become synonymous with LTE, there's been no publicly agreed upon standard for 5G networks. However, a couple of likely technologies are emerging.
5G networks will use a type of encoding called OFDM (Orthogonal Frequency Division Multiplexing), which is similar to the encoding that LTE uses. The air interface will be designed for much lower latency and greater flexibility than LTE, though.
The Next Generation Mobile Networks Alliance defines the following requirements for 5G networks: Data rates of tens of megabits per second for tens of thousands of users1 Gb per second simultaneously to many workers on the same office floorSeveral hundreds of thousands of simultaneous connections for massive wireless sensor  networkSpectral efficiency significantly enhanced compared to 4…

HaLow - Future Of WiFi....

What is HaLow?

There's a new wireless networking protocol in town and it comes to bring connectivity to the Internet of Things. Wi-Fi HaLow (pronounced "HAY-low") is a marketing name used for products that utilize the IEEE802.11ahwireless technology, which offers longer range and lower power connectivity than traditional WiFi-certified products.

Wi-Fi HaLow is the latest specification from the Wi-Fi Alliance looking to expand the range of Wi-Fi's connectivity options. Wi-Fi HaLow will be able to easily work through walls and large barriers because of the propagation capabilities of low-frequency radio waves, as it will operate in the unlicensed wireless spectrum below 1GHz. HaLow’s range will be nearly double the range of today's Wi-Fi, with estimates extending as high as a whopping 3,280 feet.
HaLow is designed for the Internet of Things, designed to connect multiple devices wirelessly, over extended distances and using lower power.  802.11ah HaLow: for low dat…

Li-Fi - A Future Connectivity !!

What is Li-Fi?
Light Fidelity or Li-Fiis a Visible Light Communications (VLC) system running wireless communications travelling at very high speeds. Li-Fi uses common household LED (light emitting diodes) lightbulbs to enable data transfer, boasting speeds of up to 224 gigabits per second.
The term Li-Fi was coined by University of Edinburgh Professor Harald Haas during a TED Talk in 2011. Haas envisioned light bulbs that could act as wireless routers.

How it works?
Li-Fi and Wi-Fi are quite similar as both transmit data electromagnetically. However, Wi-Fi uses radio waves while Li-Fi runs on visible light. As we now know, Li-Fi is a Visible Light Communications (VLC) system. This means that it accommodates a photo-detector to receive light signals and a signal processing element to convert the data into 'stream-able' content.
Visible Spectrum
An LED lightbulb is a semi-conductor light source meaning that the constant current of electricity supplied to an LED lightbulb can be dipp…

Happy 70th Independence Day

Project Loon - Balloon-Powered Internet for Everyone