5g technologies

1. UNIT - II: The 5G wireless
Propagation Channels

2. Propagation Channel Model:
• A channel model is also known as radio wave propagation
model, it characterizes radio wave propagation as a function of
frequency, distance, environment, and other factors.
• In other words, we can say that channel model provides us
rough idea how much distance a signal can travel in a certain
environment (morphology like urban, suburban or rural etc.)
with the known transmitter and receiver height.

4. Channel modeling requirements
• 5G channel models are used to simulate and
characterize the wireless communication
environment in fifth-generation (5G) networks.
• These models are essential for the design,
optimization, and evaluation of 5G systems. The
main requirements of 5G channel models are as
follows:

5. 1.Realism: The primary objective of 5G channel
models is to provide a realistic representation of
the wireless propagation environment.
• This includes considering the effects of path loss,
shadowing, and multipath fading, which are
typical phenomena in wireless communications.
• Realism ensures that the simulated results are
close to what would be experienced in real-world
scenarios.

6. 2. Accuracy: 5G channel models aim to achieve
high accuracy in predicting the behavior of the
wireless channel.
• Accurate models are crucial for ensuring that the
designed 5G systems meet the expected
performance requirements, such as data rates,
coverage, and reliability.

7. 3.Flexibility: The channel models should be flexible
enough to cover various deployment scenarios,
including urban, suburban, and rural areas.
• They should be capable of adapting to different
frequencies, bandwidths, and antenna
configurations to reflect the diverse 5G
deployment scenarios.

8. 4. Scalability: With the increasing complexity of 5G
networks, channel models need to be scalable to
support various network sizes and densities.
-Whether it's a small local network or a massive
metropolitan deployment, the models should be
able to handle the scale efficiently.

9. 5. Standardization: Standardization is vital to ensure
interoperability and compatibility among different 5G
implementations.
• Channel models are defined and standardized by
organizations like the International Telecommunication
Union (ITU) and 3rd Generation Partnership Project
(3GPP) to ensure consistency and facilitate widespread
adoption.

10. • By fulfilling these requirements, 5G channel
models play a crucial role in the design,
optimization, and standardization of 5G networks,
ultimately contributing to the efficient and reliable
performance of the next generation of wireless
communication systems.

11. 3GPP Standards as assignment
• Please refer Internet