發(fā)布時(shí)間：2018-02-26 12:02

  本文關(guān)鍵詞： 移動(dòng)通信 4G TD-LTE-Advanced 無線資源分配 比例公平 效用　出處：《哈爾濱工業(yè)大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著移動(dòng)終端技術(shù)和無線寬帶接入技術(shù)的迅猛進(jìn)步，人們對(duì)能夠隨時(shí)隨地甚至在高速移動(dòng)過程中都能便利地從互聯(lián)網(wǎng)獲取信息和服務(wù)抱有強(qiáng)烈愿望，并驅(qū)動(dòng)了移動(dòng)互聯(lián)網(wǎng)技術(shù)的飛速發(fā)展。今年恰逢移動(dòng)互聯(lián)網(wǎng)元年，移動(dòng)通信技術(shù)和互聯(lián)網(wǎng)技術(shù)正在潛移默化同時(shí)又深刻地改變著人們的生活方式。 由于全球手機(jī)用戶的增長、運(yùn)營商語音業(yè)務(wù)收入下降、網(wǎng)絡(luò)成本升高以及WiMAX陣營的競爭，在3GPP（3rdGeneration Partnership Project，第三代合作伙伴計(jì)劃）機(jī)構(gòu)的組織下，LTE（Long Term Evolution，長期演進(jìn)）項(xiàng)目應(yīng)運(yùn)而生，掀開了人類移動(dòng)通信史上的偉大一章。LTE被廣泛認(rèn)為是3.9G移動(dòng)通信技術(shù)，它分為TDD和FDD兩個(gè)版本。眾所周知，我國自主研發(fā)的3G技術(shù)TD-SCDMA取得了不俗的成就。中國真正的4G技術(shù)TD-LTE-A，再次體現(xiàn)了我國通信產(chǎn)業(yè)界自主創(chuàng)新能力。 TD-LTE-Advanced系統(tǒng)對(duì)峰值速率、頻譜效率、延遲、移動(dòng)性等重要技術(shù)指標(biāo)提出了更高要求，相比于3G技術(shù)有了巨大飛躍。僅僅依賴物理層技術(shù)的提升是遠(yuǎn)遠(yuǎn)無法滿足以上需求的，與此同時(shí)，高效的無線資源管理策略將對(duì)系統(tǒng)整體性能的提升提供重要幫助。因此，，對(duì)其中占有舉足輕重地位資源分配算法進(jìn)行研究是很有意義的。 本文針對(duì)TD-LTE-Advanced系統(tǒng)，第一章首先陳述了移動(dòng)通信技術(shù)發(fā)展歷程、課題來源及研究意義，接著對(duì)LTE-A系統(tǒng)及現(xiàn)有資源分配算法進(jìn)行了現(xiàn)狀介紹。本文第二章闡述了在資源分配過程中所用到的理論基礎(chǔ)和技術(shù)規(guī)范，并詳細(xì)分析了系統(tǒng)分組調(diào)度過程。本文第三章是重點(diǎn)內(nèi)容，設(shè)計(jì)了一種基于效用的上行資源調(diào)度算法，給出了具體系統(tǒng)模型，并進(jìn)行了仿真結(jié)果分析及計(jì)算復(fù)雜度分析，得出了所給出算法優(yōu)于現(xiàn)有算法的結(jié)論。第四章是本文另一個(gè)重點(diǎn)，我們?cè)O(shè)計(jì)了改進(jìn)比例公平下行資源調(diào)度算法，相比于傳統(tǒng)PF算法，它為低SINR用戶提供了更好的服務(wù)。從用戶的角度來看，與現(xiàn)有的比例公平算法相比，所給出的改進(jìn)資源分配算法表現(xiàn)更好。
[Abstract]:With the rapid development of mobile terminal technology and wireless broadband access technology, people have a strong desire to be able to easily obtain information and services from the Internet anytime, anywhere and even during high-speed mobile processes. This year coincides with the first year of the mobile Internet, mobile communication technology and Internet technology is imperceptible at the same time profoundly changing people's way of life. As a result of the growth of mobile phone users worldwide, the decline in voice service revenues of operators, the rising network costs and the competition from the WiMAX camp, the long term Term Evolution Project has emerged under the aegis of the 3GPPP 3rd Generation Partnership Project. It opens a great chapter in the history of human mobile communications. LTE is widely regarded as 3.9G mobile communication technology, which is divided into two versions: TDD and FDD. TD-SCDMA, which has been developed independently in China, has made great achievements. The real 4G technology TD-LTE-Ain China has demonstrated the independent innovation ability of the communication industry in China again. The TD-LTE-Advanced system has put forward higher requirements for such important technical indicators as peak rate, spectrum efficiency, delay, mobility and so on. Compared with 3G technology, TD-LTE-Advanced system has made a great leap forward. Relying on the improvement of physical layer technology is far from meeting the above requirements. At the same time, efficient wireless resource management strategy will provide important help to improve the overall performance of the system. In this paper, for TD-LTE-Advanced system, the first chapter describes the development of mobile communication technology, the source of the subject and the significance of research. Then it introduces the current situation of LTE-A system and existing resource allocation algorithms. The second chapter describes the theoretical basis and technical specifications used in the process of resource allocation. In the third chapter, an uplink resource scheduling algorithm based on utility is designed, the system model is given, and the simulation results and computational complexity are analyzed. The conclusion is that the proposed algorithm is superior to the existing algorithms. Chapter 4th is another focus of this paper. We design an improved proportional fair downlink resource scheduling algorithm, compared with the traditional PF algorithm. It provides a better service for low SINR users. From the user's point of view, the proposed improved resource allocation algorithm performs better than the existing proportional fairness algorithm.
【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1條

1 隋延峰;楊鴻文;楊大成;;采用實(shí)時(shí)公平監(jiān)測的改進(jìn)最大C/I調(diào)度算法[J];北京郵電大學(xué)學(xué)報(bào);2007年02期

本文編號(hào)：1537930