發(fā)布時(shí)間：2018-06-21 21:17

  本文選題：WLED + VLC-MIMO��； 參考：《深圳大學(xué)》2017年碩士論文

【摘要】：隨著人們身邊移動(dòng)通信設(shè)備數(shù)量以幾何速度增加、通信質(zhì)量要求越來(lái)越苛刻,無(wú)線通信面臨著頻譜緊缺性危機(jī)。在這樣的環(huán)境下,一門新興技術(shù)可見(jiàn)光通信引起了學(xué)術(shù)界和工業(yè)界的廣泛關(guān)注。其中,基于白光發(fā)光二極管(White Light Emitting Diode,WLED)的室內(nèi)可見(jiàn)光通信研究更是成為了可見(jiàn)光通信領(lǐng)域熱門研究方向。可見(jiàn)光通信(Visible Light Communication,VLC)是以人眼可見(jiàn)、約400THz帶寬的可見(jiàn)光譜作為通信頻段的一種通信方式。WLED因功耗低,使用壽命長(zhǎng)的等優(yōu)點(diǎn)占據(jù)未來(lái)室內(nèi)照明市場(chǎng),為室內(nèi)VLC的發(fā)展提供了工業(yè)基礎(chǔ)�；赪LED的室內(nèi)VLC有諸多優(yōu)點(diǎn),其中主要的包括:具有大量未開(kāi)發(fā)且無(wú)需授權(quán)的頻譜資源;照明與通信雙重功能,利用現(xiàn)有照明設(shè)備部署可見(jiàn)光通信網(wǎng)絡(luò)設(shè)備,減少基建費(fèi)用;因可見(jiàn)光頻率過(guò)高,難以穿透物體及墻體,實(shí)現(xiàn)室內(nèi)通信的高安全性。本文就基于WLED室內(nèi)VLC通信技術(shù)進(jìn)行深入研究,主要研究?jī)?nèi)容包括以下三個(gè)方面:目前基于室內(nèi)多輸入多輸出可見(jiàn)光通信(Visible Light Communication Multiple-Input Multiple-Output,VLC-MIMO)的研究大多關(guān)注于點(diǎn)對(duì)點(diǎn)通信,很少有基于VLC網(wǎng)絡(luò)的研究,本文提出基于2×2室內(nèi)VLC-MIMO系統(tǒng)模型的功率分配方案,該方案用于解決VLC網(wǎng)絡(luò)中在同時(shí)同頻段內(nèi)通信中多用戶干擾問(wèn)題,即在VLC-MIMO網(wǎng)絡(luò)干擾存在時(shí),怎么控制功率實(shí)現(xiàn)高通信質(zhì)量。搭建室內(nèi)VLC-MIMO系統(tǒng)信道建模仿真平臺(tái),用Matlab GUI作為開(kāi)發(fā)工具,以可視化仿真界面進(jìn)行仿真工作,旨在減少重復(fù)性建模工作,提高研究效率。搭建室內(nèi)VLC系統(tǒng)實(shí)驗(yàn)平臺(tái),使其能夠穩(wěn)定運(yùn)行。以Asanka Nuwanpriya博士論文中的硬件平臺(tái)作為原型,在實(shí)際搭建過(guò)程中進(jìn)行改良,完成本實(shí)驗(yàn)平臺(tái)。旨在通過(guò)該平臺(tái)進(jìn)行實(shí)驗(yàn),實(shí)測(cè)基于WLED的室內(nèi)可見(jiàn)光通信速率,為未來(lái)在平臺(tái)中加入算法,提供平臺(tái)基礎(chǔ)。
[Abstract]:With the increase of the number of mobile communication devices at the geometric speed, the demand for communication quality is more and more demanding, wireless communication is facing the crisis of spectrum shortage. In this environment, a new technology visible light communication has aroused widespread concern in the academia and industry. Among them, White Light Emitting D IODE, WLED) indoor visible light communication research has become a hot research direction in the field of visible light communication. Visible light communication (Visible Light Communication, VLC) is visible to human eyes, the visible spectrum of the bandwidth of about 400THz is used as a communication mode of communication band,.WLED has the advantages of low power consumption and long service life, which occupy future indoor photos. The Ming market provides an industrial basis for the development of indoor VLC. The interior VLC based on WLED has many advantages, including a large number of undeveloped and unauthorized spectrum resources; the dual functions of lighting and communication, the deployment of visible light communication network devices using existing lighting equipment to reduce infrastructure costs; because the high frequency of visible light is difficult. In order to penetrate the object and wall, the high security of indoor communication is realized. This paper is based on the WLED indoor VLC communication technology. The main research contents include the following three aspects: at present, the research based on the indoor multi input and multi output visible communication (Visible Light Communication Multiple-Input Multiple-Output, VLC-MIMO) is mostly closed. In point to point communication, there is little research based on VLC network. In this paper, a power allocation scheme based on 2 x 2 indoor VLC-MIMO system model is proposed. This scheme is used to solve the multiuser interference problem in the same frequency band in VLC network, that is, how to control the power to achieve high communication quality in the presence of VLC-MIMO network interference. VLC-MIMO system channel modeling and simulation platform, using Matlab GUI as a development tool and visual simulation interface for simulation work, aiming at reducing repetitive modeling work and improving research efficiency. Building an indoor VLC system experimental platform to enable it to operate stably. The hardware platform in Asanka Nuwanpriya thesis is used as a prototype, in practice In the process of building, the experiment platform is completed and the experiment is carried out through this platform. The indoor visible light communication rate based on WLED is measured, and the platform is provided for the platform to join the algorithm in the future.
【學(xué)位授予單位】：深圳大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TN929.1

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本文編號(hào)：2050034