本文選題：LTE + 節(jié)能��； 參考：《寧夏大學(xué)》2017年碩士論文

【摘要】：以目前的網(wǎng)絡(luò)架構(gòu),移動通信系統(tǒng)能源的80%被無線接入網(wǎng)消耗,而其中以基站側(cè)占最大比例,基站休眠模式是基站節(jié)能最有效最便捷的措施,是提高網(wǎng)絡(luò)能效的一種很有前景的策略,也是現(xiàn)在綠色通信的研究焦點。其主要思想就是當(dāng)基站處于低負(fù)荷期不影響網(wǎng)絡(luò)需求時將其關(guān)閉以減少能量消耗。不同的休眠策略,根本目的就是為了在不影響業(yè)務(wù)需求的基礎(chǔ)上使更多的基站處于休眠狀態(tài),從而降低能耗。本文基于有關(guān)基站休眠模式的研究成果,給出了改進(jìn)的基站休眠算法,并對比分析了其性能。本文首先介紹了論文的研究背景以及國內(nèi)外有關(guān)能效的研究現(xiàn)狀。然后通過對LTE兩大關(guān)鍵技術(shù)——OFDM和MIMO研究和仿真,為后面的學(xué)習(xí)研究夯實基礎(chǔ)。對于基站休眠模式,建立了休眠模式的能耗模型,為使盡可能多的基站進(jìn)入休眠模式,提出了改進(jìn)的蟻群算法,在基站狀態(tài)初始化階段,使每個基站的用戶數(shù)和相鄰基站數(shù)加權(quán)得到初始化閾值,再對每個基站狀態(tài)初始化,給出了完整的算法流程,仿真結(jié)果表明該改進(jìn)算法較傳統(tǒng)的分布式算法在性能上表現(xiàn)優(yōu)良。最后,為了避免休眠算法運行過程中造成基站頻繁開閉,本文又提出了基于對數(shù)增長的休眠窗口期算法并對算法性能建立了數(shù)學(xué)模型,在與經(jīng)典的三種休眠窗口期算法的比較中,該算法在平均等待時間方面有明顯改進(jìn),在平均能量消耗方面也有優(yōu)勢。
[Abstract]:With the current network architecture, 80% of the energy of the mobile communication system is consumed by the wireless access network, among which the base station side accounts for the largest proportion. The base station dormancy mode is the most effective and convenient measure for the base station to save energy. It is a promising strategy to improve network energy efficiency, and is also the focus of green communication research. The main idea is to shut down the base station during low load period to reduce energy consumption. The fundamental purpose of different sleep strategies is to reduce energy consumption by enabling more base stations to remain dormant without affecting business requirements. Based on the research results of base station sleep mode, an improved base station sleep algorithm is presented and its performance is compared and analyzed. Firstly, this paper introduces the background of this paper and the current situation of energy efficiency research at home and abroad. Then, the research and simulation of LTE and MIMO are carried out to lay a solid foundation for the later study. For the sleep mode of base station, the energy consumption model of sleep mode is established. In order to make as many base stations enter sleep mode as possible, an improved ant colony algorithm is proposed to initialize the state of the base station. The initialization threshold is obtained by weighting the number of users and the number of adjacent base stations of each base station, and then the state of each base station is initialized, and the complete algorithm flow is given. The simulation results show that the improved algorithm performs better than the traditional distributed algorithm. Finally, in order to avoid the frequent opening and closing of the base station during the running process of the sleep algorithm, this paper proposes a sleep window period algorithm based on logarithmic growth and establishes a mathematical model for the performance of the algorithm. Compared with the three classical dormant window period algorithms, the algorithm has obvious improvement in the average waiting time, and also has the advantage in the average energy consumption.
【學(xué)位授予單位】：寧夏大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.5

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本文編號：1910937