Wireless technology

Wireless TechnologyHario Jati Setyadi 5113202002

Bonda Sisephaputra 5113202012Soetjipto 5113202011

What is The Wireless Technology???

Wireless artinya : tanpa kabelWireless technology = Teknologi yang tidak menggunakan kabel/nirkabel.

802.15.1

WiMAX (Worldwide Interoperability for Microwave Access) Solusi BWA

(Broadband Wireless Access)

point-to-multipoint Solusi untuk Wireless

Metropolitan Area Network

Light Fidelity

History

Harald Haas

Receiving element (detector)

• Avalanche Photo Diode

• Image Sensors

transmission of data through illumination, sending data through a LED light bulb

Transmitting element

• LED

• Fluorescent LampAdvantages• Larger bandwidth (10,000

times the radio bandwidth)

• High efficiency• More availability• Highly secure

Disadvantage• Connectivity while

moving• Multiuser support• Dimming• Shadowing

COMPARISION BETWEEN LiFi & Wi-Fi

ApplicationsIn vehicles and traffic light, reducing accidents and traffic congestion

Street lamps(as free access points)

In Aircraft cabins

In RF restricted Environments

WIRELESS POWER TRANSMISSION

The transmission of energy from one place to another without using wires

Why not wires?Most of the energy loss is during transmission• On an average, more than 30%• In India, it exceeds 40%

Why WPT?• Reliable• Efficient• Fast• Low maintenance cost• Can be used for short-

range or long-range.

Advantages• No wires• No e-waste• Need for battery is

eliminated• Efficient energy transfer • Harmless, if field strengths

under safety levels• Maintenance cost is less

Disadvantages• Distance constraint• Field strengths have to be under

safety levels• Initial cost is high• In RIC, tuning is difficult• High frequency signals must be the

supply• Air ionization technique is not

feasible

APPLICATIONS Conclusion

• Transmission without wires- a reality• Efficient

• Low maintenance cost. But, high initial cost• Better than conventional wired transfer

• Energy crisis can be decreased• Low loss

• In near future, world will be completely wireless