Estudo de capacidade de sistemas de múltiplas antenas e Análise Bibliométrica sobre modelagem de canal MIMO

Abstract

Multiple Input Multiple Output (MIMO) is one of the key technologies present in modern wireless communications systems. This technique consists of the use of multiple transmitter and receiver antennas that are capable of meeting capacity (spatial multiplexing), improvement in link quality (diversity), error rate reduction and increased spectral efficiency. However, exploring the full potential of MIMO strategies depends on knowing the characteristics of the wireless channel, highlighting the importance and necessity of MIMO channel modeling. Thus, the objectives of this work are: (i) a study of the capacity of MIMO systems in non-selective frequency channels; and (ii) a bibliometric study of MIMO channel modeling. The research methodology combines research based on scientific material and scripting prototyping. As a result, besides the comparative study of capacity of SISO (Single Input Single Output), SIMO (Single Input Multiple Output), MISO (Multiple Input Single Output) and MIMO (Multiple Input Multiple Output), this work presents a quantitative survey of works on MIMO channel modeling in its general perspective, that is, addressing the regional and temporal development, the areas of application and modeling techniques.