【摘要】：多輸入多輸出(Multiple-Input Multiple-Output, MIMO)技術(shù)已經(jīng)成為移動通信不可或缺的一部分,在不增加發(fā)射功率前提下能夠使系統(tǒng)的信道容量得到很大的提升,這能夠很好的緩解頻譜資源緊張的情形。然而,僅僅依靠MIMO技術(shù)來提高無線通信系統(tǒng)的信道容量是不夠的,系統(tǒng)容量的增加還要很大程度的依賴于MIMO無線信道的特性；同時,研究基于MIMO的各種關(guān)鍵技術(shù)和處理算法也需要建立MIMO信道的模型,進(jìn)行相應(yīng)的信道特性參數(shù)的仿真,以便評估各種處理算法的優(yōu)劣和所用模型系統(tǒng)性能的好壞。本文主要研究并總結(jié)了WINNER和COST2100隨機(jī)信道模型的建模、仿真以及模型之間的特性參數(shù)的比較。建立在幾何基礎(chǔ)上的WINNER和COST2100隨機(jī)信道模型是第四代(4G)移動通信MIMO信道仿真中兩種最為重要模型并廣泛應(yīng)用。WINNER模型已在全球4G信道仿真中得到具體應(yīng)用。由于COST2100信道模型不同的物理機(jī)制和優(yōu)點(diǎn),也是近年來信道領(lǐng)域研究和應(yīng)用熱點(diǎn),但對于這兩種模型在具體場景下的比較和在具體應(yīng)用場景下的有效性和契合度還沒有這方面的研究工作。本文基于室內(nèi)環(huán)境,利用兩種不同模型開展對其信道進(jìn)行仿真研究。在視距(Line-of-Sight, LOS)和非視距(Non-Line-of-Sight, NLOS)的情況下,對信道的功率時延譜、萊斯因子、信道容量、時延擴(kuò)展和角度擴(kuò)展等信道特性參數(shù)進(jìn)行仿真對比,再利用實(shí)際測試數(shù)據(jù)的分析結(jié)果作為佐證來驗(yàn)證兩個模型的契合度以及模型的實(shí)用性。WINNER模型作為一個在全球已經(jīng)得到廣泛應(yīng)用的信道模型,其主要應(yīng)用于2-5GHz頻段。對于毫米波頻段現(xiàn)在還沒有一個普遍認(rèn)可的模型。本文將WINNER平臺應(yīng)用于60GHz的毫米波段。本文主要基于室內(nèi)環(huán)境,分析測試數(shù)據(jù)并提取信道特性參數(shù)的統(tǒng)計特性,將得到的特性參數(shù)應(yīng)用于WINNER平臺并對其進(jìn)行模型仿真。通過測試得到實(shí)驗(yàn)數(shù)據(jù),并對實(shí)驗(yàn)數(shù)據(jù)進(jìn)行處理仿真得到其特性參數(shù)曲線。將測試結(jié)果與WINNER模型仿真得到的結(jié)果進(jìn)行對比分析。驗(yàn)證WINNER模型在毫米波段也有廣泛的應(yīng)用前景。
[Abstract]:Multiple input multiple output (Multiple-Input Multiple-Output, MIMO) technology has become an indispensable part of mobile communication. Without increasing the transmission power, the channel capacity of the system can be greatly improved. This can alleviate the shortage of spectrum resources. However, it is not enough to rely on MIMO technology to improve the channel capacity of wireless communication system, and the increase of system capacity depends on the characteristics of MIMO wireless channel to a great extent. At the same time, it is necessary to establish the model of MIMO channel and simulate the corresponding channel characteristic parameters in order to evaluate the advantages and disadvantages of various processing algorithms and the performance of the model system used in the study of various key technologies and processing algorithms based on MIMO. In this paper, the modeling, simulation and comparison of characteristic parameters between WINNER and COST2100 random channel models are studied and summarized. The WINNER and COST2100 random channel models based on geometry are the two most important models in the fourth generation (4G) mobile communication MIMO channel simulation and are widely used. Winner model has been applied in the global 4G channel simulation. Due to the different physical mechanisms and advantages of COST2100 channel model, it is also a hot research and application topic in the field of channel in recent years. However, there is no research work on the comparison of the two models in specific scenarios and the effectiveness and coincidence of the two models in specific application scenarios. In this paper, based on the indoor environment, two different models are used to simulate the channel. In the case of line-of-sight (Line-of-Sight, LOS) and non-line-of-sight (Non-Line-of-Sight, NLOS), the channel characteristic parameters, such as power delay spectrum, Rice factor, channel capacity, delay spread and angle spread, are simulated and compared. Then the analysis results of the actual test data are used as evidence to verify the coincidence of the two models and the practicability of the model. Win model, as a channel model which has been widely used in the world, is mainly used in 2-5GHz frequency band. There is no generally accepted model for millimeter wave band. In this paper, the WINNER platform is applied to the millimeter band of 60GHz. In this paper, based on the indoor environment, the test data are analyzed and the statistical characteristics of channel characteristic parameters are extracted. The obtained characteristic parameters are applied to WINNER platform and simulated. The experimental data are obtained by test, and the characteristic parameter curves are obtained by processing and simulating the experimental data. The test results are compared with those obtained by WINNER model simulation. It is verified that the WINNER model has a wide range of application prospects in millimeter band.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TN919.3

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