本文選題：紫外光通信 + 無線Ad　； 參考：《西安理工大學(xué)》2017年碩士論文

【摘要】：無線紫外光(Ultraviolet,UV)通信是通過大氣粒子散射實(shí)現(xiàn)非直視通信,且具有抗干擾能力強(qiáng)、保密性高等優(yōu)勢,但同時(shí)也存在通信距離短的不足。Ad hoc網(wǎng)絡(luò)是一種多跳的、無中心的、自組織的無線網(wǎng)絡(luò),無固定的基礎(chǔ)設(shè)施,所有節(jié)點(diǎn)都是移動(dòng)的,且都能動(dòng)態(tài)地以任意方式保持與其余節(jié)點(diǎn)的通信。無線紫外光通信與Ad hoc 網(wǎng)絡(luò)各有其獨(dú)特的通信優(yōu)勢,因此可將兩者相結(jié)合使用。這樣無線紫外光通信就可借助Ad hoc網(wǎng)絡(luò)的多跳傳輸性能擴(kuò)大其通信范圍,很好的彌補(bǔ)了無線紫外光通信傳輸距離有限的劣勢。在無線紫外Ad hoc網(wǎng)絡(luò)的構(gòu)建過程中,覆蓋控制可有效地增強(qiáng)網(wǎng)絡(luò)覆蓋、降低網(wǎng)絡(luò)部署成本、優(yōu)化網(wǎng)絡(luò)連通性等。本文以非直視紫外光通信技術(shù)為對象,對無線紫外Ad hoc網(wǎng)絡(luò)中區(qū)域覆蓋算法進(jìn)行研究。具體的研究內(nèi)容如下:(1)闡述了本課題的研究背景及意義,介紹了無線紫外光網(wǎng)絡(luò)、覆蓋控制和Ad hoc組網(wǎng)技術(shù)等相關(guān)概念及其H內(nèi)外研究現(xiàn)狀.(2針對無線紫外Ad hoc網(wǎng)絡(luò)中節(jié)點(diǎn)位置的隨機(jī)性,為增強(qiáng)無線紫外Ad hoc網(wǎng)絡(luò)的覆蓋性能,提出了基于遺傳算法的分等級區(qū)域覆蓋優(yōu)化算法(GACOA).仿真結(jié)果表明在無線紫外Ad hoc 網(wǎng)絡(luò)中使用GACOA算法可以快速、準(zhǔn)確地構(gòu)建滿足需求的通信網(wǎng)絡(luò).同時(shí),可使無線紫外Ad hoc網(wǎng)絡(luò)的部署成本降低,且覆蓋率高于隨機(jī)部署.(3)討論了三維無線紫外Ad hoc網(wǎng)絡(luò)中發(fā)射及接收仰角、發(fā)射功率、數(shù)據(jù)速率、誤碼率、調(diào)制方式和噪聲模型對通信網(wǎng)絡(luò)性能(覆蓋率和連通性)的影響,為了在有障礙物的場景下增強(qiáng)網(wǎng)絡(luò)的覆蓋率和連通性,設(shè)計(jì)了一種三維無線紫外Ad hoc網(wǎng)絡(luò)的組網(wǎng)策略(UVNNS)。實(shí)驗(yàn)結(jié)果表明UVNNS是一種有效、可靠的組網(wǎng)方案,且在三維無線紫外Ad hoc網(wǎng)絡(luò)中應(yīng)優(yōu)先使用PPM和泊松分布噪聲模型。綜上所述,本文所提出的無線紫外Ad hoc網(wǎng)絡(luò)覆蓋控制算法可在特定的目標(biāo)區(qū)域里構(gòu)建覆蓋率較高、部署代價(jià)相對較低、連通性好的無線紫外Ad hoc通信網(wǎng)絡(luò)。
[Abstract]:Wireless UV Ultraviolet (UV) communication is realized by atmospheric particle scattering, and has the advantages of strong anti-jamming ability and high confidentiality. However, there are also some disadvantages of short communication distance. Ad hoc network is multi-hop and centreless. Self-organized wireless network, no fixed infrastructure, all nodes are mobile, and can dynamically maintain communication with the rest of the nodes in any way. Wireless ultraviolet communication and Ad hoc network have their unique communication advantages, so they can be used in combination. In this way, the wireless ultraviolet communication can extend the range of wireless ultraviolet communication with the multi-hop transmission performance of Ad hoc network, which makes up for the disadvantage of the limited transmission distance of wireless ultraviolet communication. In the process of constructing wireless ultraviolet Ad hoc network, coverage control can effectively enhance network coverage, reduce network deployment cost, optimize network connectivity and so on. In this paper, the area coverage algorithm in wireless UV Ad hoc networks is studied. The specific research contents are as follows: (1) the research background and significance of this subject are expounded, and the wireless ultraviolet light network is introduced. Related concepts such as coverage control and Ad hoc networking technology, as well as the current research situation inside and outside H, aiming at the randomness of node positions in wireless ultraviolet Ad hoc networks, to enhance the coverage performance of wireless ultraviolet Ad hoc networks. A hierarchical area coverage optimization algorithm based on genetic algorithm (GA) is proposed. Simulation results show that using GACOA algorithm in wireless ultraviolet Ad hoc networks can quickly and accurately construct communication networks that meet the requirements. At the same time, the deployment cost of wireless UV Ad hoc network can be reduced, and the coverage is higher than that of random deployment. The elevation angle, transmission power, data rate and bit error rate of transmitting and receiving in 3D wireless ultraviolet Ad hoc network are discussed. The effect of modulation mode and noise model on the performance of communication network (coverage and connectivity) is studied. In order to enhance the coverage and connectivity of the network in the presence of obstacles, a three dimensional wireless UV Ad hoc network networking strategy is designed. The experimental results show that UVNNS is an effective and reliable networking scheme, and PPMs and Poisson distributed noise models should be preferred in 3D wireless UV Ad hoc networks. To sum up, the proposed coverage control algorithm for wireless ultraviolet Ad hoc networks can construct wireless ultraviolet Ad hoc communication networks with high coverage, relatively low deployment cost and good connectivity in specific target areas.
【學(xué)位授予單位】：西安理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.1

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本文編號：2041603