【摘要】：電力線通信技術(shù)(Power Line Communication,PLC)是一種將數(shù)據(jù)加載到電力配線網(wǎng)絡(luò)上,并通過其進(jìn)行傳輸?shù)耐ㄐ偶夹g(shù)。電力線網(wǎng)絡(luò)已經(jīng)遍及千家萬戶,利用其進(jìn)行通信,不用另外鋪設(shè)線路,資金投入少,且方便靈活。隨著大數(shù)據(jù)信息時(shí)代的來臨,人們對(duì)智能家居物聯(lián)網(wǎng)系統(tǒng)產(chǎn)生了濃厚的興趣,在已有的電力線網(wǎng)絡(luò)基礎(chǔ)上,可以實(shí)現(xiàn)各種家用電器的聯(lián)網(wǎng)通信。另外,對(duì)于日益緊張的帶寬而言,電力線通信可以和無線通信和光通信等通信技術(shù)結(jié)合起來,實(shí)現(xiàn)更加靈活高效的通信。本文首先對(duì)電力線信道中存在的各種有色噪聲、脈沖噪聲、窄帶噪聲和線路開關(guān)引起的多徑衰落等信道特性進(jìn)行分析和研究。其次根據(jù)電力線信道特性以及正交頻分復(fù)用技術(shù)(Orthogonal Frequency Division Multiplexing,OFDM)的特點(diǎn),本文將OFDM技術(shù)應(yīng)用到電力線通信系統(tǒng)中。在了解OFDM的工作原理的基礎(chǔ)上建立基于OFDM的電力線通信系統(tǒng)模型,并運(yùn)用信道估計(jì)算法提升系統(tǒng)性能。最后,將PLC通信系統(tǒng)與其他室內(nèi)無線通信系統(tǒng)進(jìn)行比較,對(duì)未來電力線通信系統(tǒng)和其他通信技術(shù)融合的應(yīng)用場(chǎng)景進(jìn)行了分析和展望。
[Abstract]:Power line communication technology (Power Line Communication,PLC) is a kind of communication technology which loads data into power distribution network and transmits it. Power line network has spread over thousands of households, using it to communicate without laying additional lines, less capital investment, and convenient and flexible. With the advent of big data's information age, people have a strong interest in the intelligent home Internet of things system. Based on the existing power line network, various kinds of household appliances can be networked communication. In addition, for the increasingly tight bandwidth, power line communication can be combined with wireless communication and optical communication technology to achieve more flexible and efficient communication. In this paper, the channel characteristics of various colored noise, pulse noise, narrowband noise and multipath fading caused by line switch are analyzed and studied. Secondly, according to the characteristics of power line channel and orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing,OFDM), this paper applies OFDM technology to power line communication system. On the basis of understanding the working principle of OFDM, the power line communication system model based on OFDM is established, and the channel estimation algorithm is used to improve the system performance. Finally, by comparing the PLC communication system with other indoor wireless communication systems, the application scenarios of future power line communication system and other communication technologies are analyzed and prospected.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：TN913.6

【參考文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前2條

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本文編號(hào)：2241965