Hey Guys, recently completed the ppt on lifi !!
Hope so that it will be benificial for you and will surely provide u enough knowledge on LiFi technology.
Don't forget to give a thumbZupp' if you liked it :)
Comment if any Queries.
Thanks for watching.
Regards,
DEEPENDRA GOSWAMI
https://www.linkedin.com/in/deependra-goswami-321a92134
Hey Guys, recently completed the ppt on lifi !!
Hope so that it will be benificial for you and will surely provide u enough knowledge on LiFi technology.
Don't forget to give a thumbZupp' if you liked it :)
Comment if any Queries.
Thanks for watching.
Regards,
DEEPENDRA GOSWAMI
https://www.linkedin.com/in/deependra-goswami-321a92134
These slides use concepts from my (Jeff Funk) course entitled Biz Models for Hi-Tech Products to analyze the business model for pureLiFi’s LiFi technology. LiFi uses light waves as opposed to radio waves to transmit data wirelessly. While the transmission distances are very short and the light waves cannot penetrate walls as radio waves can do to some extent, LiFi has higher speeds, bandwidth, and security. The slides recommend that pureLiFi target defense company’s first and consumers second. Defense companies have a higher willingness to pay and they are more concerned with security than are consumers. As the cost falls, pureLiFi should begin to target consumers. PureLiFi should provide its technology to systems integrators that are defense contractors.
A presentation by Casey Wagner given at the 2007 Blandin Broadband Conference: Track II: Technology – The Infrastructure, The Applications: Understanding Wireless Technologies
Ericsson Technology Review – Microwave backhaul gets a boost with multibandEricsson
With the exception of Northeast Asia, 65 percent of all cell sites will be connected to the rest of the network using microwave backhaul technology by 2020. Between now and then, the performance of microwave backhaul will continue to improve, supporting growing capacity needs through technology evolution and more efficient use of spectrum. So as the dominant backhaul media in modern networks, the ability of microwave to carry traffic plays a significant role in providing good mobile network performance.
Technology evolution, increased mobility, and massive digitalization continue to place ever more demanding performance requirements on networks. The constant pressure to increase performance translates into a need for more spectrum, and more efficient use of it – not just when it comes to radio access, but for microwave backhaul as well.
But spectrum is a finite natural resource, so technology developments not only need to be able to make use of higher frequencies, they also need to unleash the potential of all the untapped spectrum that exists.
Radio-link bonding is a well-established method for enhancing peak capacity, enabling multiple radio carriers to be aggregated into a single virtual one. So far, developments have focused on bonding carriers within the same frequency band. The multiband booster concept, however, uses radio-link bonding to aggregate carriers in different frequency bands, enabling the full spectrum potential to be unleashed.
These slides use concepts from my (Jeff Funk) course entitled Biz Models for Hi-Tech Products to analyze the business model for pureLiFi’s LiFi technology. LiFi uses light waves as opposed to radio waves to transmit data wirelessly. While the transmission distances are very short and the light waves cannot penetrate walls as radio waves can do to some extent, LiFi has higher speeds, bandwidth, and security. The slides recommend that pureLiFi target defense company’s first and consumers second. Defense companies have a higher willingness to pay and they are more concerned with security than are consumers. As the cost falls, pureLiFi should begin to target consumers. PureLiFi should provide its technology to systems integrators that are defense contractors.
A presentation by Casey Wagner given at the 2007 Blandin Broadband Conference: Track II: Technology – The Infrastructure, The Applications: Understanding Wireless Technologies
Ericsson Technology Review – Microwave backhaul gets a boost with multibandEricsson
With the exception of Northeast Asia, 65 percent of all cell sites will be connected to the rest of the network using microwave backhaul technology by 2020. Between now and then, the performance of microwave backhaul will continue to improve, supporting growing capacity needs through technology evolution and more efficient use of spectrum. So as the dominant backhaul media in modern networks, the ability of microwave to carry traffic plays a significant role in providing good mobile network performance.
Technology evolution, increased mobility, and massive digitalization continue to place ever more demanding performance requirements on networks. The constant pressure to increase performance translates into a need for more spectrum, and more efficient use of it – not just when it comes to radio access, but for microwave backhaul as well.
But spectrum is a finite natural resource, so technology developments not only need to be able to make use of higher frequencies, they also need to unleash the potential of all the untapped spectrum that exists.
Radio-link bonding is a well-established method for enhancing peak capacity, enabling multiple radio carriers to be aggregated into a single virtual one. So far, developments have focused on bonding carriers within the same frequency band. The multiband booster concept, however, uses radio-link bonding to aggregate carriers in different frequency bands, enabling the full spectrum potential to be unleashed.
Li-Fi, or light fidelity, is 5G visible light communication systems using light from light-emitting diodes (LEDs) as a medium to deliver networked, mobile, high-speed communication in a similar manner as Wi-Fi and Optical fiber.
These technology is new and it is very faster and more secure then then the WI-FI.And these technology will be used in some countries. It is in demonstrating stage.
# Internet Security: Safeguarding Your Digital World
In the contemporary digital age, the internet is a cornerstone of our daily lives. It connects us to vast amounts of information, provides platforms for communication, enables commerce, and offers endless entertainment. However, with these conveniences come significant security challenges. Internet security is essential to protect our digital identities, sensitive data, and overall online experience. This comprehensive guide explores the multifaceted world of internet security, providing insights into its importance, common threats, and effective strategies to safeguard your digital world.
## Understanding Internet Security
Internet security encompasses the measures and protocols used to protect information, devices, and networks from unauthorized access, attacks, and damage. It involves a wide range of practices designed to safeguard data confidentiality, integrity, and availability. Effective internet security is crucial for individuals, businesses, and governments alike, as cyber threats continue to evolve in complexity and scale.
### Key Components of Internet Security
1. **Confidentiality**: Ensuring that information is accessible only to those authorized to access it.
2. **Integrity**: Protecting information from being altered or tampered with by unauthorized parties.
3. **Availability**: Ensuring that authorized users have reliable access to information and resources when needed.
## Common Internet Security Threats
Cyber threats are numerous and constantly evolving. Understanding these threats is the first step in protecting against them. Some of the most common internet security threats include:
### Malware
Malware, or malicious software, is designed to harm, exploit, or otherwise compromise a device, network, or service. Common types of malware include:
- **Viruses**: Programs that attach themselves to legitimate software and replicate, spreading to other programs and files.
- **Worms**: Standalone malware that replicates itself to spread to other computers.
- **Trojan Horses**: Malicious software disguised as legitimate software.
- **Ransomware**: Malware that encrypts a user's files and demands a ransom for the decryption key.
- **Spyware**: Software that secretly monitors and collects user information.
### Phishing
Phishing is a social engineering attack that aims to steal sensitive information such as usernames, passwords, and credit card details. Attackers often masquerade as trusted entities in email or other communication channels, tricking victims into providing their information.
### Man-in-the-Middle (MitM) Attacks
MitM attacks occur when an attacker intercepts and potentially alters communication between two parties without their knowledge. This can lead to the unauthorized acquisition of sensitive information.
### Denial-of-Service (DoS) and Distributed Denial-of-Service (DDoS) Attacks
This 7-second Brain Wave Ritual Attracts Money To You.!nirahealhty
Discover the power of a simple 7-second brain wave ritual that can attract wealth and abundance into your life. By tapping into specific brain frequencies, this technique helps you manifest financial success effortlessly. Ready to transform your financial future? Try this powerful ritual and start attracting money today!
Bridging the Digital Gap Brad Spiegel Macon, GA Initiative.pptxBrad Spiegel Macon GA
Brad Spiegel Macon GA’s journey exemplifies the profound impact that one individual can have on their community. Through his unwavering dedication to digital inclusion, he’s not only bridging the gap in Macon but also setting an example for others to follow.
1.Wireless Communication System_Wireless communication is a broad term that i...JeyaPerumal1
Wireless communication involves the transmission of information over a distance without the help of wires, cables or any other forms of electrical conductors.
Wireless communication is a broad term that incorporates all procedures and forms of connecting and communicating between two or more devices using a wireless signal through wireless communication technologies and devices.
Features of Wireless Communication
The evolution of wireless technology has brought many advancements with its effective features.
The transmitted distance can be anywhere between a few meters (for example, a television's remote control) and thousands of kilometers (for example, radio communication).
Wireless communication can be used for cellular telephony, wireless access to the internet, wireless home networking, and so on.
Multi-cluster Kubernetes Networking- Patterns, Projects and GuidelinesSanjeev Rampal
Talk presented at Kubernetes Community Day, New York, May 2024.
Technical summary of Multi-Cluster Kubernetes Networking architectures with focus on 4 key topics.
1) Key patterns for Multi-cluster architectures
2) Architectural comparison of several OSS/ CNCF projects to address these patterns
3) Evolution trends for the APIs of these projects
4) Some design recommendations & guidelines for adopting/ deploying these solutions.
APNIC Foundation, presented by Ellisha Heppner at the PNG DNS Forum 2024APNIC
Ellisha Heppner, Grant Management Lead, presented an update on APNIC Foundation to the PNG DNS Forum held from 6 to 10 May, 2024 in Port Moresby, Papua New Guinea.
2. Light gives off itself freely,
filling all available space.
It does not seek anything
in return. It gives off itself
and is not thereby
diminished….
3.
4. Li Fi- LIGHT FIDELITY
Light based Wi-Fi
Use light instead of radio waves to
transmit information
No Wi-Fi modems
Li-Fi use transceiver-fitted LED
lamps
5. LED lamps serve dual purpose
Lights up a room
Transmit and receive information
Li-Fi is transmission of data through
illumination
Sending data through an LED light
bulb that varies in intensity faster
than a human eye can follow.
6. Developed by Prof
Harald Haas, Dr
Gordan Povey, &
Dr Mostafa at the
University of
Edinburgh.
Term coined by
Dr. Harald Haas
Introduced at
TEDGlobal
8. • Gamma rays -dangerous
• X-rays- hospitals
• UV rays- harmful
• Infrared – due to eye safety regulations it can
be used only in lower powers.
• Radio waves- Wi-Fi
• Visible light spectrum- Light, Inherently safe to
use
10. LED is switched on and off faster since the
operating speed of LED is less than 1μs which
is faster than what the human eye can
detect, causing the light source to appear
continuously.
This invisible on-off activity enables a kind
of data transmission using binary codes.
Switching on an LED is a logical ‘1’,
Switching it off is a logical ‘0’.
11. Such advancements promise a
theoretical speed of 10 Gbps –
meaning one can download a full
high definition film in just 30
seconds.
12. Serial
no
Parameters Wireless technologies
Li-Fi Wi-Fi
1 Speed more than 1 Gbps 150 mbps
2 Medium light Radio waves
3 Spectrum(Range) 10,000 times more
the radio waves
less
4 Cost No license required,
hence less expensive
More expensive
5 Security More secure(cannot
be hacked)
Less secure(can be
hacked)
6 Traffic control More(due to high
speed and
availability)
Less(signal becomes
weaker as traffic
increases)
14. Car headlights and tail lights
Car-to-car communication
Anti-collision systems
Exchange of information on driving
conditions between vehicles.
Traffic lights - city wide traffic management
systems.
Car systems to download information from
the network and have real time information
on optimal routes to take.
18. Wi-Fi-electromagnetic interference (EMI) with
sensitive radio equipment on the flight deck.
On aircraft, Li-Fi enabled lighting will allow high
data rate connectivity for each passenger.
20. Radio waves are quickly absorbed in
water, preventing underwater radio
communications
Li-Fi can enable communication
from diver to diver, diver to mini-
sub, diver to drilling rig, etc.
22. Exhibits in museums and galleries are
illuminated
Li-Fi enabled lighting can provide localised
information within that light.
This means that a visitor’s camera or mobile
phone can be used to download further
information regarding the object being
viewed from the light that illuminates the
exhibit.
24. Millions of street lamps
Every street lamp could be a free
access point
Street lamps could provide both,
illumination during night, and high
speed data communication 24/7.
25. Light can't pass through objects
Interferences from external light
sources
A major challenge facing Li-Fi is how
the receiving device will transmit back
to transmitter
26. The possibilities are numerous and can be
explored further.
If this technology can be put into practical
use , every bulb can be used something like a
Wi-Fi hotspot to transmit wireless data.
Cleaner, greener, brighter future