What Are The Advantages And Disadvantages Of Li-Fi

In the recent years, wireless technologies have taken a new dimension in the ways society lives. Wireless broadband is available to everyone. Whether the users are at home, driving the car, sitting in the park, and it would even work while people are a pleasure boat ride in the middle of a lake. And because of this, the need to have information at any time and be connected in all places, all the time has been satisfied.

The market for wireless communications has experienced incredible growth over recent years and wireless LANs have rapidly become a very

Perhaps the greatest advantage of wireless networks is the freedom from physical cabling. Laptop users can finally use their machines as they were intended; away from a desk. Unfortunately, wireless LAN standards (IEEE 802.11) are considerably slower than their wired counterparts. 802.11a wireless is capable of speeds up to 72Mbps; however, it is currently restricted to a throughput of 54Mbps by the FCC.

Possibility of electromagnetic interference at 2.4 GHz, so many devises such as Bluetooth, cordless phones and security cameras also use the 2.4GHz frequency band.

Individuals now become able to connect to the internet from everywhere such as; schools, homes, hospitals, etc. By networked wireless communication technology, surfing the internet become easier and obtainable even in security sites. In addition, one of the wireless communication technologies is li-fi, which stand for “light fidelity “who coined the term by “Harald Haas a German Professor of Mobile Communications at the University of Edinburgh” (Rani, 2012). As for a practical sense li-fi means transfer data via lights, and it has been rated as one of the top innovations for 2011. In the future Wi-Fi would be replaced by li-fi because it solve lots of technical problems that Wi-Fi has, Also li-fi has its own special components and modus operandi . Furthermore li-fi can

To start, a wireless network or Wi-Fi “is a technology that allows electronic devices to exchange data or connect to the Internet through wireless communications using 2.4 GHz signals or 5 GHz signals. Wi-Fi is also used to synonymously to indicate a wireless local area network (WLAN) based on the IEEE 802.11 protocol” (Ghosh, Sinha B, K, 2016, p. 4). Mobile networking and Wi-Fi are key factors in society. Wi-Fi was invented and first released in 1997. Becki Wood wrote an article titled “History of WiFi” in the article she says “WiFi has played an integral role in keeping us connected at home and in public. We’ve come to expect a standard degree of connectivity wherever we go, and regularly rely on

Due to the increase in popularity of mobile devices and tablets by consumers, the decline in the Personal Computer Market (Technology, 2013) is escalating, and consequentially, hardware and software development for the mobile market is on the increase as well as the development of Wi-Fi (Wireless Local Area Network) technology.

Although 4G network in some areas not yet fully universal, but the most recent 5G this topic has fired up. 5G network as a next generation mobile communication network, its theoretical maximum transfer speeds of up to tens of Gb per second, which is far more than the transmission rate of the existing 4G network, the whole ultra-high-definition movie can be downloaded completed within one second. 802.11ac technology are used in fifth generation network as a mainstay. It has also become the focus of the network industry concerned. This report try to represent a full picture of 802.11ac technology.

There are many trends in our IT industry. Here we are going to discuss about the emerging technology in IT (i.e.) Wi-Fi technology.

The concept of the WPT system is shown and explained using the block diagram (Figure 1). On the transmitting end of the system, the microwave power source generates microwave power, which is controlled by electronic control circuits. Then the signal travels through the Coax-Waveguide Adaptor and the waveguide circulator, which protects the signal from reflected power, to the tuner and

The improvement of innovation is making a wide range of things should be possible all the more effectively. Included is a technique for conveying information to one or different PCs on the double. Perhaps we are a layman, don 't see how the procedure of the conveyance or dispersion of the information, in subtle element. Generally we know just restricted utilization of the fibre optic link in the conveyance process information. Also, and still, after all that just quickly information. As Human nowadays, Internet is already be part of our lives. An internet connectivity is a must in this modern era due to the technology that has grown rapidly. Wi-Fi has been with humans for about 30 years. And the first Wireless Technology introduced was the WaveLAN. And from that moment, the name of Wi-Fi became booming around the world and human uses a lot until now. Li-Fi was invented by Harald Haas from the University of Edinburgh, Scotland in 2011, when he exhibited surprisingly that by flashing the light from a solitary Drove, he could transmit significantly a larger number of information than a cell tower (Crew 2015). This technology has been demonstrated at the 2012 Consumer Electronics Show in Las Vegas using a pair of Casio 's smartphone data exchange by using light of varying intensity were released from their screens , were detected at a distance of up to ten meters. Which then this points to a question of many people asking, is Wi-Fi generation will be

Wireless Local Area networks (WLANs) have been employed to add mobility features to office and campus networks since the late 1980s. This article presents a discussion of the current state of WLAN technology and some of the products available.

Increasingly our society is being inundated with information wirelessly, through emissions of electromagnetic waves (EMF). Any room you enter is being blanketed with ever increasing amounts of, in some cases, highly powerful electromagnetic waves. These waves carry everything from cell phone traffic to wireless internet signals, to even conventional AM/FM radio signals. Although humans and animals cannot perceive most of these electromagnetic frequencies, they can affect biological organisms in many ways that scientists currently do not even understand. Even further, demand for such wireless applications is growing in terms of both signal strength and bandwidth. This leads to the important question of

Increased uses of laptop computers within the enterprise, and increase in worker mobility have fuelled the demand for wireless networks. Up until recently, wireless technology was a patchwork of incompatible systems from a variety of vendors. The technology was slow, expensive and reserved for mobile situations or hostile environments where cabling was impractical or impossible. With the maturing of industry standards and the deployment of lightweight wireless networking hardware across a broad market section, wireless technology has come of age.

Wireless Local Area Network (WLAN) with a range of 5.9GHz frequency spectrum is used for this system to allow the interaction between the cars. This system also provided with a 360-degree view and 300m range to protect the car and communicate with another car. The objective of this system is to allow the interaction among vehicle that used the same road, to improve the safety and efficiency of the road transportation. The used of WLAN, the drivers will know the current speed, acceleration, braked status and path history of another vehicle. No private info like license or name written there. The benefit of this system will lead to the safer roads, avoid crashes and decrease the rate of accident because there is certain safety such as emergency electronic brake lights that notified the driver a hard brake vehicle on the path ahead, lane change warning, the system will warn the drivers that are not safe to change the lane, because there might be a fast vehicle that will pass through the lane that the drivers want to