本文關(guān)鍵詞： 5G D2D 設(shè)備發(fā)現(xiàn) 基于FFR的分區(qū)算法 基于FFR的劃分復(fù)用和通信限制區(qū)算法 授權(quán)與非授權(quán)頻譜共存　出處：《西南交通大學(xué)》2017年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著海量智能終端設(shè)備與日俱增和滿足用戶特定需求的新興業(yè)務(wù)方興未艾,移動通信承載的數(shù)據(jù)流量爆炸式增長和無線頻譜資源緊缺的矛盾日益涌現(xiàn)。增加網(wǎng)絡(luò)容量、提高頻譜利用率和提升由更加豐富的通信模式帶來的終端用戶體驗(QoS)刻不容緩。作為面向5G關(guān)鍵候選技術(shù)之一的設(shè)備到設(shè)備(Device-to-Device,D2D)通信技術(shù),將依托未來移動通信技術(shù)超高速率、超大帶寬、超大規(guī)模接入能力和超大數(shù)據(jù)處理能力等特征,充分彰顯自身優(yōu)勢。D2D通信通過復(fù)用蜂窩網(wǎng)絡(luò)頻譜資源以提升系統(tǒng)吞吐量,但同時也帶來了 D2D設(shè)備發(fā)現(xiàn)、連接建立和系統(tǒng)用戶間干擾等問題,本文重點研究滿足特定需求的D2D設(shè)備發(fā)現(xiàn)機制和降低用戶間干擾提升系統(tǒng)吞吐量性能的資源復(fù)用算法。論文在介紹D2D通信研究背景、意義和發(fā)展現(xiàn)狀的基礎(chǔ)上,首先針對D2D設(shè)備發(fā)現(xiàn)過程提出了滿足特定需求的不同方案;然后詳細分析了 D2D通信復(fù)用5G蜂窩上行和下行授權(quán)頻譜資源時不同用戶所受的干擾;仿真驗證了部分頻率復(fù)用(Fraction Frequency Reuse,FFR)算法相比于其他資源分配算法的優(yōu)越性;提出了基于FFR的分區(qū)資源復(fù)用算法和基于FFR的劃分復(fù)用限制區(qū)和通信限制區(qū)的資源復(fù)用算法,仿真結(jié)果表明:D2D復(fù)用下行資源時,本文所提的兩種算法相比FFR算法均能獲得更高的系統(tǒng)吞吐量,同時找出了最大化小區(qū)吞吐量的中心區(qū)域與小區(qū)總面積的比值;另外,考慮到未來蜂窩用戶部分數(shù)據(jù)傳輸將遷移到非授權(quán)頻段,因此,分析了引入非授權(quán)頻段后,D2D復(fù)用資源的多種模式,并仿真分析了四種復(fù)用模式下的用戶吞吐量。結(jié)果表明:授權(quán)和非授權(quán)頻譜共存場景下,CUE授權(quán)+CUE非授權(quán)+D2D復(fù)用授權(quán)模式下小區(qū)用戶總吞吐量性能最優(yōu)。
[Abstract]:With the increasing number of intelligent terminal devices and the emerging services to meet the specific needs of users, the contradiction between the explosive growth of data traffic carried by mobile communications and the shortage of wireless spectrum resources is emerging day by day. It is urgent to improve the spectrum efficiency and improve the end user experience (QoS) brought about by a richer communication mode. As one of the key candidate technologies for 5G, the device to device Device-to-device D2D communication technology will rely on the future mobile communication technology super high speed rate. The characteristics of ultra-large bandwidth, super-large-scale access capacity and super-large data processing capability fully demonstrate its advantages. D2D communication improves system throughput by multiplexing spectrum resources of cellular networks, but also brings D2D device discovery. In this paper, we focus on D2D device discovery mechanism and resource reuse algorithm to reduce inter-user interference to improve the throughput performance of the system. The background of D2D communication research is introduced in this paper. On the basis of the significance and current situation, different schemes are proposed to meet the specific requirements for the D2D device discovery process, and then the interference of different users when D2D communication multiplexes 5G cellular uplink and downlink authorized spectrum resources is analyzed in detail. The simulation results show that the partial frequency reuse Frequency reuse algorithm is superior to other resource allocation algorithms, and proposes a partition resource reuse algorithm based on FFR and a resource reuse algorithm based on FFR for dividing multiplexing restricted areas and communication limited areas. The simulation results show that the two algorithms proposed in this paper can achieve higher system throughput than the FFR algorithm, and find out the ratio of the center area to the total cell area to maximize the cell throughput. Considering that the future data transmission of some cellular users will be migrated to the non-authorized frequency band, this paper analyzes the various modes of D2D multiplexing resources after the introduction of the unauthorized frequency band. The simulation results show that under the coexistence of authorized and unauthorized spectrum scenarios, the total throughput of cell users is optimal in the case of cue authorized CUE unauthorized D2D multiplexing authorization mode.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.5

【參考文獻】

相關(guān)期刊論文 前10條

1 郭蕊;朱賀新;王笑洋;;5G網(wǎng)絡(luò)中D2D通信資源分配的研究現(xiàn)狀[J];北京工業(yè)職業(yè)技術(shù)學(xué)院學(xué)報;2017年01期

2 魏運鋒;劉慶東;楊銳;;5G標(biāo)準(zhǔn)及關(guān)鍵技術(shù)[J];電信工程技術(shù)與標(biāo)準(zhǔn)化;2016年12期

3 王現(xiàn)超;江帆;孫長印;李晨碧;申斌艷;;D2D通信中一種基于FFR的動態(tài)功率控制方案[J];電信科學(xué);2016年09期

4 錢志鴻;王雪;;面向5G通信網(wǎng)的D2D技術(shù)綜述[J];通信學(xué)報;2016年07期

5 王良民;劉曉龍;李春曉;楊睛;楊衛(wèi)東;;5G車聯(lián)網(wǎng)展望[J];網(wǎng)絡(luò)與信息安全學(xué)報;2016年06期

6 張鋒;王明華;;5G移動通信發(fā)展現(xiàn)狀及其關(guān)鍵技術(shù)[J];中國新通信;2016年06期

7 梁瑋;李云鵬;覃鳳謝;;無線通信網(wǎng)絡(luò)中的D2D技術(shù)發(fā)展研究[J];數(shù)字技術(shù)與應(yīng)用;2016年03期

8 MA Bei;ZHANG Hailin;ZHANG Zhaowei;;Joint Power Allocation and Mode Selection for D2D Communications with Imperfect CSI[J];中國通信;2015年07期

9 王斌;孟琬婷;王兆豐;王文鼐;;蜂窩控制下的D2D通信的無線資源分配研究[J];南京郵電大學(xué)學(xué)報(自然科學(xué)版);2015年03期

10 王斌;孟琬婷;周為峰;王兆豐;;提高LTE下含D2D通信的蜂窩網(wǎng)絡(luò)公平性方案[J];北京郵電大學(xué)學(xué)報;2015年02期

相關(guān)碩士學(xué)位論文 前1條

1 李志華;D2D通信系統(tǒng)功率控制算法研究[D];西南交通大學(xué);2013年

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