本文選題：多輸入多輸出 + 電力線(xiàn)通信�。� 參考：《華北電力大學(xué)(北京)》2017年博士論文

【摘要】：隨著數(shù)字通信技術(shù)的發(fā)展,新的通信業(yè)務(wù)需求對(duì)電力線(xiàn)通信(Power Line Communication,PLC)技術(shù)提出了更高的要求,利用現(xiàn)有電力線(xiàn)架構(gòu)有效傳輸高質(zhì)量的通信信號(hào)具有重大的經(jīng)濟(jì)效益和社會(huì)效益。多輸入多輸出電力線(xiàn)通信(Multi-input Multi-output Power Line Communication,MIMO-PLC)作為一種有效對(duì)抗PLC信道多徑衰落、提高PLC可靠性和信道容量的潛在有效手段受到了業(yè)界愈來(lái)愈廣泛的關(guān)注。針對(duì)目前關(guān)于MIMO-PLC信道特性的研究和掌握不夠充分、國(guó)內(nèi)鮮有MIMO-PLC技術(shù)相關(guān)研究的文獻(xiàn)報(bào)道的情況,本文對(duì)2~100MHz范圍內(nèi)的寬帶MIMO-PLC信道特性進(jìn)行了全面而深入的分析研究。本文基于多導(dǎo)體傳輸線(xiàn)理論,建立了適用于寬帶MIMO-PLC信道的可靠模型;結(jié)合模型和測(cè)量數(shù)據(jù),詳細(xì)分析了2~100MHz范圍內(nèi)寬帶MIMO-PLC信道特性的變化規(guī)律;基于改進(jìn)模型,建立了寬帶MIMO-PLC隨機(jī)參數(shù)信道模型,并提出了一種針對(duì)寬帶MIMO-PLC信道的“混合”建模方法,首次對(duì)寬帶MIMO-PLC信道的隨機(jī)特性進(jìn)行了全面的分析;利用頻率切片小波變換首次詳細(xì)分析了2~100MHz范圍內(nèi)寬帶MIMO-PLC信道的噪聲特性;建立了中繼模型,首次詳細(xì)分析了中繼對(duì)寬帶MIMO-PLC信道特性的影響。本文的研究旨在全面了解和掌握寬帶MIMO-PLC信道特性及變化規(guī)律,為寬帶MIMO-PLC系統(tǒng)的設(shè)計(jì)提供理論和數(shù)據(jù)支持,促進(jìn)寬帶MIMO-PLC技術(shù)進(jìn)一步發(fā)展。本文取得的主要研究成果如下:(1)提出了一種針對(duì)寬帶MIMO-PLC信道的改進(jìn)模型。通過(guò)對(duì)低壓室內(nèi)配電網(wǎng)常用電纜中影響PLC信道特性的一次線(xiàn)參數(shù)進(jìn)行詳細(xì)的分析,揭示了低壓室內(nèi)配電網(wǎng)常用電纜一次線(xiàn)參數(shù)隨頻率變化的規(guī)律;基于多導(dǎo)體傳輸線(xiàn)理論分析了基于電壓比的寬帶MIMO-PLC信道基本模型建模過(guò)程,在考慮絕緣材料電特性的情況下,提出了一種針對(duì)寬帶MIMO-PLC信道的改進(jìn)模型,對(duì)無(wú)分支和有分支情況下的寬帶MIMO-PLC信道進(jìn)行了有效建模,并將模型計(jì)算值與實(shí)際測(cè)量數(shù)據(jù)進(jìn)行了對(duì)比。結(jié)果顯示,模型能夠很好的描述寬帶MIMO-PLC實(shí)際信道的特性,達(dá)到了預(yù)期效果,模型為寬帶MIMO-PLC信道特性的研究提供了可靠的分析工具。(2)系統(tǒng)地分析了寬帶MIMO-PLC信道傳輸特性和輸入阻抗特性隨信道拓?fù)渥兓兓囊?guī)律,系統(tǒng)地分析了寬帶MIMO-PLC信道上的噪聲特性。設(shè)計(jì)和搭建了多種拓?fù)浣Y(jié)構(gòu)的寬帶MIMO-PLC網(wǎng)絡(luò),利用網(wǎng)絡(luò)分析儀對(duì)每種拓?fù)浣Y(jié)構(gòu)網(wǎng)絡(luò)的傳輸函數(shù)和輸入阻抗進(jìn)行了大量測(cè)量,利用測(cè)量數(shù)據(jù)并結(jié)合所建寬帶MIMO-PLC信道模型,定量分析了分支長(zhǎng)度、分支位置和分支數(shù)量對(duì)寬帶MIMO-PLC信道特性的影響;對(duì)在線(xiàn)情況下的信道特性進(jìn)行了建模并與實(shí)際測(cè)量值進(jìn)行了對(duì)比,進(jìn)一步證明了建模思路和方法的正確性;對(duì)典型環(huán)境下寬帶MIMO-PLC信道中的噪聲進(jìn)行了測(cè)量,并利用頻率切片小波時(shí)頻分析方法對(duì)寬帶范圍內(nèi)MIMO-PLC信道噪聲的特性進(jìn)行了全面的分析和研究。這些研究對(duì)于簡(jiǎn)化寬帶MIMO-PLC信道特性的研究、系統(tǒng)設(shè)計(jì)和工程應(yīng)用具有重要意義。(3)首次全面地分析了寬帶MIMO-PLC隨機(jī)參數(shù)信道特性;提出了一種針對(duì)寬帶MIMO-PLC信道的“混合”建模方法,對(duì)不同帶寬下的寬帶MIMO-PLC信道特性進(jìn)行了全面的分析。利用本文的改進(jìn)模型建立了針對(duì)特定場(chǎng)景的寬帶MIMO-PLC隨機(jī)參數(shù)信道模型,并對(duì)隨機(jī)參數(shù)寬帶MIMO-PLC信道特性進(jìn)行了全面的研究和分析,模型利用統(tǒng)計(jì)分布來(lái)表征信道的物理參數(shù),比較分析了參數(shù)隨機(jī)且分支不同的MIMO-PLC寬帶信道特征;結(jié)合電力線(xiàn)信道自下而上建模和自上而下建模兩種建模方法,提出了一種寬帶MIMO-PLC混合模型,為寬帶MIMO-PLC信道特性分析、研究及工程應(yīng)用提供了一種先驗(yàn)寬帶MIMO-PLC信道建模方法。給出了相關(guān)算例,分析了算例在2~30MHz和2~100MHz兩種帶寬下的信道特征和參數(shù)。(4)首次詳細(xì)分析了中繼對(duì)寬帶MIMO-PLC信道特性的影響。以放大轉(zhuǎn)發(fā)中繼模式(amplify-and-forward,AF)作為寬帶MIMO-PLC中繼模式,基于本文建立的寬帶MIMO-PLC直接鏈路信道模型建立了寬帶MIMO-PLC信道中繼模型。從理論上詳細(xì)分析了中繼對(duì)于寬帶MIMO-PLC信道特性影響。
[Abstract]:With the development of digital communication technology, new communication services demand higher requirements for Power Line Communication (PLC) technology. The effective transmission of high quality communication signals with existing power line architecture has great economic and social benefits. Multi input and multi output power line communication (Multi-input Multi-outp) UT Power Line Communication, MIMO-PLC), as a potential effective means to effectively combat the multipath fading of PLC channel and improve the reliability and channel capacity of PLC, has attracted more and more attention in the industry. In view of the lack of research and mastery of the characteristics of MIMO-PLC channel, there are few literature reports on the related research of MIMO-PLC technology in China. In this paper, the wideband MIMO-PLC channel characteristics in the 2~100MHz range are thoroughly and deeply analyzed. Based on the multi conductor transmission line theory, a reliable model for broadband MIMO-PLC channel is established, and the variation of the broadband MIMO-PLC channel characteristics in the 2~100MHz range is analyzed in detail by combining the model and the measured data. Based on the improved model, a broadband MIMO-PLC random parameter channel model is established, and a "hybrid" modeling method for broadband MIMO-PLC channel is proposed. The random characteristics of the broadband MIMO-PLC channel are comprehensively analyzed for the first time, and the broadband MIMO-PLC channel in the 2~100MHz range is analyzed for the first time by using the frequency slice wavelet transform. A relay model is established. The effect of relay on the characteristics of broadband MIMO-PLC channel is analyzed in detail for the first time. The aim of this paper is to understand and master the characteristics and change rules of broadband MIMO-PLC channel in an all-round way, to provide theoretical and data support for the design of broadband MIMO-PLC system, and to promote the further development of broadband MIMO-PLC technology. The main research results are as follows: (1) an improved model for broadband MIMO-PLC channel is proposed. Through the detailed analysis of the first line parameters affecting the PLC channel characteristics in the common cables of the low-voltage indoor distribution network, the rule of the frequency variation with the frequency of the primary cable in the low-voltage indoor distribution network is revealed. The line theory analyses the basic model modeling process of broadband MIMO-PLC channel based on voltage ratio. Considering the electrical properties of insulating materials, an improved model for broadband MIMO-PLC channel is proposed. The effective modeling of the broadband MIMO-PLC channel without branch and branching is carried out, and the calculated value and the actual measurement number are also calculated. The results show that the model can well describe the characteristics of the broadband MIMO-PLC actual channel and achieve the expected effect. The model provides a reliable analysis tool for the study of the broadband MIMO-PLC channel characteristics. (2) the characteristics of the broadband MIMO-PLC channel and the input impedance characteristics vary with the channel topology changes. The noise characteristics on the broadband MIMO-PLC channel are systematically analyzed. A wide band MIMO-PLC network is designed and constructed. The network analyzer is used to measure the transmission function and input impedance of each topology network, and the measured data are combined with the built broadband MIMO-PLC channel model, and the quantitative analysis is made. The influence of branch length, branch position and branch number on the characteristics of broadband MIMO-PLC channel; modeling the channel characteristics in the online situation and comparing with the actual measured values, further proving the correctness of the modeling ideas and methods, measuring the noise in the wideband MIMO-PLC channel under the typical environment, and using the frequency. The sliced wavelet time-frequency analysis method is used to analyze and study the characteristics of the MIMO-PLC channel noise in the wideband range. These studies are of great significance to simplify the research on the characteristics of the wideband MIMO-PLC channel, system design and engineering applications. (3) the characteristics of the wide band MIMO-PLC random parameter channel are analyzed for the first time. In view of the "hybrid" modeling method of broadband MIMO-PLC channel, the characteristics of wideband MIMO-PLC channel under different bandwidth are comprehensively analyzed. Using this improved model, a wideband MIMO-PLC random parameter channel model for specific scene is established, and the characteristics of random parameter broadband MIMO-PLC channel are thoroughly studied and analyzed. The model uses statistical distribution to characterize the physical parameters of the channel, compares and analyzes the characteristics of the MIMO-PLC wideband channel with random and different branches, and combines the bottom-up and top-down modeling methods of the power line channel, and proposes a wideband MIMO-PLC hybrid mode, which is the characteristics of broadband MIMO-PLC channel analysis, research and work. Cheng Yingyong provides a priori broadband MIMO-PLC channel modeling method. An example is given and the channel characteristics and parameters of the two bandwidth of 2~30MHz and 2~100MHz are analyzed. (4) the influence of the relay on the broadband MIMO-PLC channel characteristics is analyzed in detail for the first time. The amplification and forwarding mode (amplify-and-forward, AF) is used as a broadband MIMO-P. The LC relay mode, based on the wideband MIMO-PLC direct link channel model established in this paper, establishes a broadband MIMO-PLC channel relay model. The effect of relay on the broadband MIMO-PLC channel characteristics is analyzed in detail.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TN913.6

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