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The Optimized QuaDRiGa Wi-Fi Channel Model

Journal Name:

  • International Journal of Science and Engineering Investigations

Publication Year:

  • 2015

Key Words:

Author NameUniversity of Author
Abstract (2. Language): 
This paper propose an optimal Wi-Fi channel model by definition second order environment interactions computation in the quasi deterministic radio channel generator (QuaDRiGa) model. This is an undeniable truth in some environments especially indoor environments, dispersive signal has many interactions with its environs. Hence, in addition to line of sight (LOS) interactions, non-line of sight (NLOS) interactions has a significant impact on radio channel modeling process. In the previous QuaDRiGa model, only two kind of interactions considered which named LOS and single interaction clusters (NLOS_SICs), but, for the new optimized channel model also, intervened one kind of non-line of sight multiple interaction clusters (NLOS_MICs) known as non-line of sight twin interaction clusters (NLOS_TICs). Therefore, more details of departure and arrival angles, delay spread and powers are changed in the channel coefficient computations. Summary, when the clusters formed by the means of parameterizing large-scale parameter (LSP), the cluster types recognition approach used to determining clusters type and then for each of them, different methods used to calculate channel parameters. Finally, experimental result and numerical analysis (e.g. shadow fading, K factor delay spread) show that the proposed channel model is able to serve as a more accurate design framework for Wi-Fi Multiple input-Multiple output (MIMO) channel model and have a better performance than previous QuaDRiGa in the channel coefficient estimation
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