異構(gòu)無線網(wǎng)絡(luò)中基站節(jié)能方法研究
發(fā)布時間：2018-08-07 18:32
【摘要】：隨著信息與通信技術(shù)的高速發(fā)展,現(xiàn)有的通信系統(tǒng)已經(jīng)演變?yōu)楦吣芎漠a(chǎn)業(yè),因此,如何將節(jié)能減排、減少資源浪費(fèi)的綠色通信理念融入到無線通信網(wǎng)絡(luò)的優(yōu)化設(shè)計中,是建立未來高能效可持續(xù)發(fā)展無線通信網(wǎng)絡(luò)的關(guān)鍵。由于當(dāng)前異構(gòu)無線網(wǎng)絡(luò)的基站通�；ハ嘀丿B覆蓋,其通信業(yè)務(wù)在時域和空域上存在大范圍動態(tài)變化的需求,而且大量密集部署的基站在低負(fù)載情況下能耗浪費(fèi)情況嚴(yán)重。針對這些存在的問題,本文在結(jié)合3GPP中節(jié)能系統(tǒng)的概念的基礎(chǔ)上,深入挖掘異構(gòu)無線網(wǎng)絡(luò)基站協(xié)作優(yōu)化的能效潛力,建立了兼顧能效與容量的基站節(jié)能優(yōu)化模型,并給出了在確保業(yè)務(wù)質(zhì)量及網(wǎng)絡(luò)覆蓋服務(wù)的前提下的基站節(jié)能優(yōu)化方法。具體包括如下：(1)針對同構(gòu)網(wǎng)絡(luò)場景,提出了一種基于導(dǎo)頻功率控制的基站節(jié)能優(yōu)化算法,算法設(shè)計了導(dǎo)頻功率調(diào)整的計算方法,并通過調(diào)整導(dǎo)頻控制功率參數(shù)來優(yōu)化休眠覆蓋區(qū)域業(yè)務(wù)的轉(zhuǎn)移,使業(yè)務(wù)負(fù)載轉(zhuǎn)移集中到指定的相鄰活躍基站中,以便于更多的低負(fù)載基站進(jìn)入準(zhǔn)休眠狀態(tài),從而大幅度降低網(wǎng)絡(luò)的能耗。(2)針對異構(gòu)網(wǎng)絡(luò)場景,則提出了一種基于異構(gòu)網(wǎng)絡(luò)分層服務(wù)的基站節(jié)能算法,算法結(jié)合了控制與覆蓋相分離的概念,建立了基于異構(gòu)網(wǎng)絡(luò)分層服務(wù)的網(wǎng)絡(luò)模型,研究網(wǎng)絡(luò)業(yè)務(wù)負(fù)載的有效轉(zhuǎn)移策略,在確保業(yè)務(wù)質(zhì)量和覆蓋服務(wù)的前提下實(shí)現(xiàn)最大限度的能量節(jié)省。本文以區(qū)域業(yè)務(wù)量變化為基礎(chǔ),針對這兩種不同的網(wǎng)絡(luò)場景提出了兩種完備的節(jié)能優(yōu)化算法。并對其涉及的節(jié)能觸發(fā)和恢復(fù)條件、節(jié)能覆蓋補(bǔ)償方式、節(jié)能優(yōu)化數(shù)學(xué)模型和節(jié)能性能評估等關(guān)鍵技術(shù)進(jìn)行了詳細(xì)的分析和研究。最后通過仿真驗(yàn)證了這兩種節(jié)能算法在不同網(wǎng)絡(luò)場景下的可行性和有效性,具有一定的現(xiàn)實(shí)意義。
[Abstract]:With the rapid development of information and communication technology, the existing communication system has evolved into a high-energy industry. Therefore, how to integrate the green communication concept of energy saving and emission reduction and reducing waste of resources into the optimal design of wireless communication network. It is the key to establish the wireless communication network with high energy efficiency and sustainable development in the future. Because the base stations of heterogeneous wireless networks usually overlap with each other, there is a large range of dynamic changes of communication services in time domain and spatial domain, and a large number of densely deployed base stations are seriously wasteful of energy consumption under low load. In view of these problems, based on the concept of energy-saving system in 3GPP, this paper deeply excavates the energy efficiency potential of base station cooperation optimization in heterogeneous wireless network, and establishes a base station energy-saving optimization model which takes energy efficiency and capacity into account. At the same time, the optimization method of base station energy saving under the premise of ensuring service quality and network coverage service is given. The details are as follows: (1) aiming at the isomorphic network scene, a base station energy-saving optimization algorithm based on pilot power control is proposed, and the calculation method of pilot power adjustment is designed. By adjusting the pilot control power parameters to optimize the service transfer in the dormant coverage area, the service load transfer is centralized into the designated adjacent active base stations, so as to facilitate more low-load base stations to enter the quasi-dormancy state. In order to greatly reduce the energy consumption of the network. (2) for the heterogeneous network scenario, a base station energy-saving algorithm based on heterogeneous network layered services is proposed, which combines the concept of separation of control and coverage. A network model based on hierarchical services in heterogeneous networks is established, and the effective transfer strategy of network traffic load is studied to achieve maximum energy saving under the premise of ensuring service quality and coverage services. Based on the change of regional traffic, this paper proposes two complete energy-saving optimization algorithms for these two different network scenarios. The trigger and recovery conditions of energy saving, the compensation method of energy saving coverage, the mathematical model of energy saving optimization and the evaluation of energy saving performance are analyzed and studied in detail. Finally, the feasibility and effectiveness of the two energy-saving algorithms in different network scenarios are verified by simulation, which has certain practical significance.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TN929.5
[Abstract]:With the rapid development of information and communication technology, the existing communication system has evolved into a high-energy industry. Therefore, how to integrate the green communication concept of energy saving and emission reduction and reducing waste of resources into the optimal design of wireless communication network. It is the key to establish the wireless communication network with high energy efficiency and sustainable development in the future. Because the base stations of heterogeneous wireless networks usually overlap with each other, there is a large range of dynamic changes of communication services in time domain and spatial domain, and a large number of densely deployed base stations are seriously wasteful of energy consumption under low load. In view of these problems, based on the concept of energy-saving system in 3GPP, this paper deeply excavates the energy efficiency potential of base station cooperation optimization in heterogeneous wireless network, and establishes a base station energy-saving optimization model which takes energy efficiency and capacity into account. At the same time, the optimization method of base station energy saving under the premise of ensuring service quality and network coverage service is given. The details are as follows: (1) aiming at the isomorphic network scene, a base station energy-saving optimization algorithm based on pilot power control is proposed, and the calculation method of pilot power adjustment is designed. By adjusting the pilot control power parameters to optimize the service transfer in the dormant coverage area, the service load transfer is centralized into the designated adjacent active base stations, so as to facilitate more low-load base stations to enter the quasi-dormancy state. In order to greatly reduce the energy consumption of the network. (2) for the heterogeneous network scenario, a base station energy-saving algorithm based on heterogeneous network layered services is proposed, which combines the concept of separation of control and coverage. A network model based on hierarchical services in heterogeneous networks is established, and the effective transfer strategy of network traffic load is studied to achieve maximum energy saving under the premise of ensuring service quality and coverage services. Based on the change of regional traffic, this paper proposes two complete energy-saving optimization algorithms for these two different network scenarios. The trigger and recovery conditions of energy saving, the compensation method of energy saving coverage, the mathematical model of energy saving optimization and the evaluation of energy saving performance are analyzed and studied in detail. Finally, the feasibility and effectiveness of the two energy-saving algorithms in different network scenarios are verified by simulation, which has certain practical significance.
【學(xué)位授予單位】：華北電力大學(xué)(北京)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2016
【分類號】：TN929.5
【參考文獻(xiàn)】
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