【摘要】：云計(jì)算作為一種全新的信息技術(shù)，通過(guò)網(wǎng)絡(luò)將大量的計(jì)算機(jī)連接起來(lái)，組成一個(gè)龐大的資源池，為用戶提供服務(wù)。云計(jì)算可以降低用戶在IT硬件、軟件投資維護(hù)如購(gòu)買辦公電腦、服務(wù)器、企業(yè)辦公軟件以及相應(yīng)的支持維護(hù)人員上的支出，并提高辦公電腦、服務(wù)器等IT基礎(chǔ)設(shè)施的利用率。基于集中式基帶資源池的云型無(wú)線接入網(wǎng)(C-RAN)是一種與云計(jì)算結(jié)合的新的接入網(wǎng)架構(gòu)，通過(guò)集中并虛擬化基帶處理資源，實(shí)現(xiàn)基帶處理資源的靈活分配，從而提高基帶處理資源的利用率，并降低無(wú)線網(wǎng)絡(luò)的建設(shè)和運(yùn)營(yíng)成本。本文研究了云計(jì)算架構(gòu)下的資源分配算法，并針對(duì)C-RAN環(huán)境下的應(yīng)用特性，提出了有效的基帶處理資源分配方案。 首先，，本文提出了一種云計(jì)算環(huán)境下基于業(yè)務(wù)特征的虛擬機(jī)資源分配算法。在該算法中，定義了描述用戶業(yè)務(wù)特征的時(shí)延因子和價(jià)格因子等參數(shù)，資源調(diào)度器根據(jù)用戶對(duì)業(yè)務(wù)特征的描述以及云計(jì)算數(shù)據(jù)中心的狀態(tài)計(jì)算出業(yè)務(wù)的成本指數(shù)，并根據(jù)成本指數(shù)分配云計(jì)算資源，從而降低不同業(yè)務(wù)特征用戶的云計(jì)算使用成本。 然后，針對(duì)C-RAN架構(gòu)下的業(yè)務(wù)和系統(tǒng)特性，提出了一種基帶處理資源分配方案。該方案將傳統(tǒng)的蜂窩小區(qū)一一映射到邏輯小區(qū)，然后以邏輯小區(qū)為單位研究了基帶處理資源的分配問(wèn)題，將所述基帶處理資源分配問(wèn)題分解為業(yè)務(wù)調(diào)度和計(jì)算資源分配兩個(gè)子問(wèn)題，并分別給出了具體的業(yè)務(wù)調(diào)度算法和計(jì)算資源分配算法，實(shí)現(xiàn)了基帶資源的動(dòng)態(tài)分配。
[Abstract]:Cloud computing, as a new information technology, connects a large number of computers through the network, and forms a huge pool of resources to provide services for users. Cloud computing can reduce the expenditure of users on IT hardware, software investment and maintenance, such as purchasing office computer, server, enterprise office software and corresponding support maintenance personnel, and improve the utilization of IT infrastructure such as office computer, server and so on. Cloud Wireless access Network (C-RAN) based on centralized baseband resource pool is a new access network architecture combined with cloud computing. By centralizing and virtualizing baseband processing resources, the flexible allocation of baseband processing resources is realized, so as to improve the utilization of baseband processing resources and reduce the construction and operating costs of wireless networks. In this paper, the resource allocation algorithm in cloud computing architecture is studied, and an effective baseband processing resource allocation scheme is proposed according to the application characteristics of C-RAN environment. Firstly, this paper proposes a virtual machine resource allocation algorithm based on business characteristics in cloud computing environment. In this algorithm, the delay factor and price factor are defined to describe the user's business characteristics. The resource scheduler calculates the cost index of the service according to the user's description of the business characteristics and the state of the cloud computing data center, and allocates the cloud computing resources according to the cost index, so as to reduce the cloud computing cost of the users with different business characteristics. Then, according to the service and system characteristics of C-RAN architecture, a baseband processing resource allocation scheme is proposed. In this scheme, the traditional cellular cells are mapped one by one to the logical cells, and then the allocation problem of baseband processing resources is studied in the unit of logical cells. The problem of baseband processing resource allocation is decomposed into two sub-problems: service scheduling and computing resource allocation. The specific service scheduling algorithm and computing resource allocation algorithm are given respectively, and the dynamic allocation of baseband resources is realized.
【學(xué)位授予單位】：西安電子科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.09

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 秦志光;柯濤;劉夢(mèng)娟;王聰;;面向云平臺(tái)的資源分配策略研究[J];計(jì)算機(jī)應(yīng)用;2013年02期

本文編號(hào)：2508139