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Resource Allocation in Ultra-low Latency and Ultra-reliable 5G Wireless Networks

Abolhassani, Bahman | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49776 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Salehi, Jawad
  7. Abstract:
  8. With the explosive increase in the amount of information in the today's world, the need for high-speed data transmission is felt more and more. According to Cisco's forecast, the traffic explosion in real wireless networks will continue. According to the forecast, the volume of data traffic on wireless networks will be about one hundred and ninety exabytes in the next two years, and in the next four years will reach over five hundred exabytes per year. On the other hand, the advent of new technologies, such as the Internet of Things and the Tactile Internet, pushes us to make it possible to transmit with very low delays and high reliability in future generation networks. In this project, we plan to solve the problem of allocating resources in 5th generation wireless networks with the aim of reducing transmission delays and improving reliability. So far, various research has been done in the area of resource allocation in the 5th generation wireless networks. In particular, it has been shown that there is an inverse relationship between latency and reliability. This research shows that it is necessary to have a debit note between these two features. Also, depending on the architecture and technologies used in the network, the design type of the resource allocation algorithm will be different. But research has shown that an optimal point is needed considering the quality of service constraints. In the major investigations carried out in this area, the relationships of delay calculation are obtained with simplifying assumptions. Also, the optical transmission network specifications are not accurately modeled. In this project, we intend to consider the backhaul design with the aim of minimizing the total cost of the backhaul network and at the same time guarantee the ultra-reliable communication. We assume that Base Stations can be connected to each other either via Fiber or a mmWave link or a Sub-6 GHZ link. Then the Hybrid RF/mmWave link has been introduced as a good choice for backhaul link and a simplifies optimization problem for backhaul design has been proposed. The problem has been solved with a two-step method and through numerical simulations, it has been shown that the results from the proposed solution are very close to optimal results achieved by exhaustive search
  9. Keywords:
  10. Fiber Optics ; Reliability ; Resources Allocation ; Wireless Networks ; 5th Generation Cellular Network ; Backhoul Network ; Hybrid RF/mmWaves Link

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