【摘要】：近年來(lái)移動(dòng)應(yīng)用業(yè)務(wù)的增長(zhǎng),對(duì)接入網(wǎng)帶寬提出了越來(lái)越高的要求。高速毫米波光無(wú)線融合系統(tǒng)充分利用光纖的巨大帶寬和無(wú)線傳輸?shù)撵`活性,期冀為未來(lái)提供Gb/s級(jí)數(shù)據(jù)的傳輸。高速光無(wú)線融合系統(tǒng)由于其帶寬高、覆蓋范圍廣、傳輸速率高、保密性好,受到了越來(lái)越多的關(guān)注,國(guó)內(nèi)外各大科研機(jī)構(gòu)紛紛開(kāi)展相關(guān)研究。本文從光無(wú)線融合系統(tǒng)的系統(tǒng)構(gòu)建和原理出發(fā),研究提升光無(wú)線系統(tǒng)傳輸容量和距離的關(guān)鍵使能技術(shù),如光生毫米波技術(shù),多維復(fù)用技術(shù),以及在無(wú)線接收端的相干接收算法。在光發(fā)射機(jī)端,我們研究了不同先進(jìn)調(diào)制格式的產(chǎn)生方式和原理,仿真分析了QPSK、16QAM等先進(jìn)調(diào)制格式的不同傳輸損耗,并基于現(xiàn)已鋪設(shè)的光纖網(wǎng)絡(luò),搭建了W波段通斷鍵控(00K)信號(hào)光無(wú)線系統(tǒng)的實(shí)驗(yàn)傳輸驗(yàn)證系統(tǒng),4 Gb/s信號(hào)經(jīng)過(guò)40 km光纖和2 m無(wú)線傳輸后,誤碼仍能滿足FEC閾值的要求。此外,基于相干檢測(cè),我們對(duì)QPSK色散補(bǔ)償、偏振解復(fù)用、頻偏估計(jì)以及載波恢復(fù)等線性和非線性補(bǔ)償算法進(jìn)行了研究,并對(duì)基于RF導(dǎo)頻的DFTS-OFDM相位噪聲補(bǔ)償仿真系統(tǒng)進(jìn)行介紹與分析。最后,我們搭建了基于W波段的雙向傳輸光無(wú)線光纖融合實(shí)驗(yàn)驗(yàn)證系統(tǒng),通過(guò)改進(jìn)部署結(jié)構(gòu),引入光相干檢測(cè)和數(shù)字信號(hào)處理技術(shù),實(shí)現(xiàn)了在(20+20)km光纖鏈路和2 m無(wú)線鏈路上傳輸30 Gb/s的信號(hào)。
[Abstract]:In recent years, with the growth of mobile application service, the bandwidth of access network is becoming more and more important. High-speed millimeter-wave optical wireless fusion system makes full use of the huge bandwidth of optical fiber and the flexibility of wireless transmission, hoping to provide Gb/s level data transmission for the future. High speed optical wireless fusion system has attracted more and more attention because of its high bandwidth, wide coverage, high transmission rate and good confidentiality. Based on the system construction and principle of optical wireless fusion system, this paper studies the key enabling technologies to enhance the transmission capacity and distance of optical wireless systems, such as optical millimeter-wave technology, multi-dimensional multiplexing technology, and coherent reception algorithm at the wireless receiver. At the end of the optical transmitter, we study the generation methods and principles of different advanced modulation formats, simulate and analyze the different transmission losses of the advanced modulation formats such as QPSK,16QAM, and base on the fiber optic network that has been laid. An experimental transmission verification system for W band on-off keying (00K) signal optical wireless system is built. After 40 km optical fiber and 2 m wireless transmission, 4 Gb/s signals can still meet the requirements of FEC threshold. In addition, based on coherent detection, linear and nonlinear compensation algorithms such as QPSK dispersion compensation, polarization demultiplexing, frequency offset estimation and carrier recovery are studied. The simulation system of DFTS-OFDM phase noise compensation based on RF pilot is introduced and analyzed. Finally, we set up an experimental verification system of optical fiber fusion based on W band. By improving the deployment structure, we introduce optical coherence detection and digital signal processing technology. A 30 Gb/s signal is transmitted on (20 20) km fiber link and 2 m wireless link.
【學(xué)位授予單位】：復(fù)旦大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 湯禪娟;李榮玲;邵宇豐;遲楠;余建軍;董澤;G. K. Chang;;Experimental demonstration for 40-km fiber and 2-m wireless transmission of 4-Gb/s OOK signals at 100-GHz carrier[J];Chinese Optics Letters;2013年02期

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本文編號(hào)：2425392