Capacity Analysis of Millimeter Wave Communications Under Different Adaptive Transmission Strategies

  • Fatimah Al-Ogaili

Student thesis: Master's Thesis

Abstract

The bandwidth shortage experienced by wireless communication has motivated the use of the underutilized millimeter-wave (mmWave) spectrum for future 5G mobile communication networks. Millimeter wave, ranging between 30 and 300 GHz, provides a solution for the bottleneck problem in the current cellular allocations, by offering orders of magnitude increase in the spectrum. Successful deployment of mmWave systems demands adequate characterization of the fading channel and sufficient capacity assessment. This thesis analyzes the capacity performance of mmWave communication systems. Specifically, it addresses the capacity of millimeter wave channels assuming the K − μ distribution under different adaptive transmission strategies. To this end, closed form expressions of the capacity under optimum power and rate adaptation (OPRA), channel inversion with fixed rate (CIFR) as well as truncated channel inversion with fixed rate (TIFR) are derived and validated by means of numerical analysis. Using these expressions, power requirements and coverage range of mmWave systems in comparison to currently deployed systems are also addressed, in which it is shown that mmWave communication support high data rates over short distances with increased power requirements. In addition, cooperative communication is introduced as a possible solution to the coverage problem of mmWave systems. The performance of a relay selection Decode and-Forward (DF) cooperative system under Generalized-k fading channel is analyzed. Novel closed form expressions of the generalized moments and the ergodic channel capacity are established. Numerical simulations are provided in order to validate the derived analytical results.
Date of AwardJun 2017
Original languageAmerican English
SupervisorSami Muhaidat (Supervisor)

Keywords

  • Millimeter Wave; Optimum Power and Rate Adaptation (OPRA); Channel Inversion with fixed rate (CIFR); Adaptive Transmission Strategies.

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