本文選題：TD-LTE + 集群通信�。� 參考：《哈爾濱工業(yè)大學(xué)》2014年碩士論文

【摘要】：目前，數(shù)字集群通信系統(tǒng)快速發(fā)展，由傳統(tǒng)的提供語音業(yè)務(wù)為主，到現(xiàn)在對(duì)支持多樣化的多媒體業(yè)務(wù)的廣泛需求，數(shù)字集群通信系統(tǒng)對(duì)帶寬的要求越來越高。同時(shí)，TD-LTE（Time Division Long-term evolution，時(shí)分長期演進(jìn)）作為新一代寬帶泛在無線網(wǎng)絡(luò)的代表，正在快速發(fā)展。TD-LTE是我國第四代移動(dòng)通信的標(biāo)準(zhǔn)，目前已經(jīng)商用。所以，將數(shù)字集群應(yīng)用集成到TD-LTE公網(wǎng)中，發(fā)展TD-LTE公網(wǎng)集群系統(tǒng)，能夠解決集群多媒體業(yè)務(wù)對(duì)數(shù)字集群通信的帶寬需求。 雖然TD-LTE有巨大的優(yōu)勢，但是實(shí)現(xiàn)TD-LTE公網(wǎng)集群，還要考慮很多，無線資源調(diào)度算法的設(shè)計(jì)就是其中之一。目前TD-LTE調(diào)度算法的研究，主要集中在如何保障多媒體業(yè)務(wù)的QoS（Quality of Service，服務(wù)質(zhì)量）特性上，并沒有專門地針對(duì)集群多媒體業(yè)務(wù)進(jìn)行研究。集群通信需要對(duì)用戶的優(yōu)先級(jí)進(jìn)行管理，與一般多媒體業(yè)務(wù)不同的是，集群多媒體業(yè)務(wù)要區(qū)分用戶的優(yōu)先級(jí)。所以本文研究的目的是提出一種TD-LTE公網(wǎng)集群多媒體業(yè)務(wù)下行無線資源調(diào)度算法，既能夠保障QoS特性又能提供用戶優(yōu)先級(jí)管理。 本文首先介紹了課題背景和研究意義。 在第二章里，我們分析了TD-LTE下行無線資源調(diào)度的基本原理，首先介紹了TD-LTE下行系統(tǒng)的模型、關(guān)鍵技術(shù)以及資源分配策略的建模過程。還介紹了下行包調(diào)度的過程和包調(diào)度算法的分類，以及包調(diào)度算法的性能分析參數(shù)。最后，簡單介紹了本文仿真使用的仿真平臺(tái)，LTE-Sim。。 在第三章里，我們簡單介紹了TD-LTE的三種經(jīng)典算法。通過對(duì)FLS算法的理論分析，，并比較仿真結(jié)果，清晰地表明FLS算法的巨大優(yōu)勢。為后文提出集群多媒體業(yè)務(wù)下行調(diào)度算法提供了理論基礎(chǔ)和創(chuàng)新想法。 第四章是本文的重點(diǎn)，本章提出了一種TD-LTE公網(wǎng)集群多媒體業(yè)務(wù)下行無線資源調(diào)度算法，DTLCP（Discrete Time Line Control with Priority，帶優(yōu)先級(jí)的離散時(shí)間線性控制）。 第五章也是本文的重點(diǎn)之一，本章提出了DTLCP算法的一種改進(jìn)算法，M-DTLCP（Modified-Discrete-Time Line Control with Priority，修改的帶優(yōu)先級(jí)的離散時(shí)間線性控制）。最后，對(duì)改進(jìn)算法M-DTLCP進(jìn)行仿真。 最后，對(duì)本文進(jìn)行了歸納總結(jié)，給出本文結(jié)論。
[Abstract]:At present, the rapid development of the digital trunking communication system is based on the traditional voice service. To the wide demand for the diversified multimedia services, the digital trunking communication system requires more and more bandwidth. At the same time, TD-LTE (Time Division Long-term evolution, TDD) is a new generation of broadband ubiquitous wireless The representative of the network is developing.TD-LTE rapidly as the standard of the fourth generation of mobile communication in China. It is now commercially available. Therefore, the integration of the digital cluster application into the TD-LTE public network and the development of the TD-LTE public network cluster system can solve the wide demand of the cluster multimedia service to the digital trunking communication.
Although TD-LTE has great advantages, the realization of the TD-LTE public network cluster is still one of the many. The design of the wireless resource scheduling algorithm is one of them. At present, the research of TD-LTE scheduling algorithm is mainly focused on how to guarantee the QoS (Quality of Service, quality of service) of multimedia services, and does not specifically aim at cluster multimedia. The cluster communication needs to manage the priority of the user. Unlike the general multimedia service, the cluster multimedia service should distinguish the user's priority. So the purpose of this paper is to propose a wireless resource scheduling algorithm for the TD-LTE public network cluster multimedia service downlink, which can not only guarantee the QoS characteristics but also provide the performance of the wireless resource scheduling. User priority management.
This paper first introduces the background and significance of the research.
In the second chapter, we analyze the basic principle of TD-LTE downlink wireless resource scheduling. First, it introduces the model of TD-LTE downlink system, key technology and the modeling process of resource allocation strategy. It also introduces the process of downlink packet scheduling, the classification of packet scheduling algorithm and the performance analysis parameters of packet scheduling algorithm. Finally, it introduces a brief introduction to the performance of packet scheduling algorithm. The simulation platform used in this paper is a simulation platform, LTE-Sim..
In the third chapter, we briefly introduce three classical algorithms of TD-LTE. Through the analysis of the theoretical analysis of the FLS algorithm and the comparison of the simulation results, we clearly show the great advantage of the FLS algorithm. This provides a theoretical basis and innovative idea for the later proposed algorithm for the downlink scheduling of cluster multimedia services.
The fourth chapter is the focus of this paper. In this chapter, a wireless resource scheduling algorithm for TD-LTE public network cluster multimedia service downlink is proposed, DTLCP (Discrete Time Line Control with Priority, discrete time linear control with priority).
The fifth chapter is also one of the key points of this paper. This chapter proposes an improved algorithm for DTLCP algorithm, M-DTLCP (Modified-Discrete-Time Line Control with Priority, modified discrete time linear control with priority). Finally, the improved algorithm M-DTLCP is simulated.
Finally, the paper concludes and gives the conclusion of this paper.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.5

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 董曉魯;我國數(shù)字集群通信系統(tǒng)簡介[J];電信技術(shù);2005年08期

2 蔣輝;許瑞峰;張丹丹;胡振興;;McWiLL的演進(jìn):面向工業(yè)信息化的寬帶多媒體集群系統(tǒng)[J];電信科學(xué);2008年08期

3 鄭祖輝;;數(shù)字集群通信的業(yè)務(wù)與功能[J];中國無線電;2008年05期

4 梁倩;;支持實(shí)時(shí)多媒體業(yè)務(wù)QoS的LTE下行調(diào)度研究[J];現(xiàn)代電信科技;2012年04期

本文編號(hào)：1900699