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Modeling and Performance Analysis of 5G Networks

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- Overview

5G is the fifth generation of mobile network. It is a global wireless standard that can be implemented in low-band, mid-band, or high-band millimeter-wave. 5G is designed to connect devices, objects, and machines together.

5G can deliver speeds up to 20 Gbps in ideal conditions, which is nearly 200 times faster than 4G. However, factors such as location, network provider, and device capabilities can influence the rate. Research into 5G is a hotspot in current mobile communication research. 

Here are some examples of research into 5G: 

  • Modeling and Performance Analysis of Cellular and Device-to: This research is about the development of large scale integrated circuits and Internet technology.
  • Interference Modeling and Performance Analysis of 5G: This research is based on a blockage model that captures the average number of obstacles that cause a complete link blockage.
  • Modeling and Performance Analysis of 5G RRC Protocol: This research proposes a novel 5G RRC analytical model based on discrete-time vacation queuing theory.
  • Dependability Modeling and Analysis of 5G Based Monitoring: This research is about the need for real time monitoring and control to maintain a stable operation due to the large scale introduction of Distributed Energy Resources (DERs) in the next generation distribution grid.
  • On The Modelling and Performance Analysis of Lower Layer: This research is about executing handover based on Layer 1 (L1) measurements using the so called lower layer mobility procedure.

- Probability and Communication Systems

Wireless communications and networks research is a vast area of science and technology concerned with the development of the most efficient means of packaging and transmitting information between nodes. Key goals include reducing costs and power usage through the design of application-specific antennas, and maximizing bandwidth of communication channels via improvements in information system theory.

In wireless mobile networks, quantities such as call blocking probability, call dropping probability, handoff probability, handoff rate, and the actual call holding times for both complete and incomplete calls are very important performance parameters in the network performance evaluation and design. 


- The Noise in the Transmission 

Communication systems play a central role in our lives. Everyday, we use our cell phones, access the internet, use our TV remote controls, and so on. Each of these systems relies on transferring information from one place to another. 

For example, when you talk on the phone, what you say is converted to a sequence of 00's or 11's called information bits. These information bits are then transmitted by your cell phone antenna to a nearby cell tower.

The problem that communication engineers must consider is that the transmission is always affected by noise. That is, some of the bits received at the cell tower are incorrect. 

For example, your cell phone may transmit the sequence "010010⋯,""010010⋯," while the sequence "010110⋯""010110⋯" might be received at the cell tower. In this case, the fourth bit is incorrect. Errors like this could affect the quality of the audio in your phone conversation.  

The noise in the transmission is a random phenomenon. Before sending the transmission we do not know which bits will be affected. It is as if someone tosses a (biased) coin for each bit and decides whether or not that bit will be received in error. 

Probability theory is used extensively in the design of modern communication systems in order to understand the behavior of noise in these systems and take measures to correct the errors. 

Randomness is prevalent everywhere, and probability theory has proven to be a powerful way to understand and manage its effects. 

[More to come ...]

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