發(fā)布時間：2018-11-04 15:32

【摘要】：異構(gòu)無線網(wǎng)絡(luò)是移動通信未來發(fā)展的一個主要趨勢,它可以利用不同網(wǎng)絡(luò)的特性以及網(wǎng)絡(luò)資源為用戶提供更好的,更優(yōu)質(zhì)的多樣化服務(wù)。網(wǎng)絡(luò)選擇接入策略作為異構(gòu)無線網(wǎng)絡(luò)中的一個研究熱點,主要是解決提升用戶服務(wù)質(zhì)量和整個異構(gòu)無線網(wǎng)絡(luò)性能的問題。博弈論作為一種分析問題的有效工具,在異構(gòu)無線網(wǎng)絡(luò)中有著廣泛的應(yīng)用,本文對基于博弈論的異構(gòu)無線網(wǎng)絡(luò)選擇策略優(yōu)化進行了分析和研究,主要的工作內(nèi)容有:首先本文通過進化博弈模型對兩層異構(gòu)無線蜂窩網(wǎng)絡(luò)系統(tǒng)進行數(shù)學(xué)建模,然后根據(jù)我們的優(yōu)化目標(biāo)進行支付函數(shù)模型定義,接著通過模仿者動態(tài)模型對用戶在網(wǎng)絡(luò)選擇過程中的動態(tài)行為進行描述并求解了均衡策略,通過最后的仿真結(jié)果可以看到,所有用戶的收益趨向于網(wǎng)絡(luò)所有用戶的平均收益。提升了用戶之間的公平性以及系統(tǒng)能效。接著本文對網(wǎng)絡(luò)場景進行了拓展,研究了由多種網(wǎng)絡(luò)制式組成的異構(gòu)無線網(wǎng)絡(luò)中有多種用戶業(yè)務(wù)請求類型的場景。提出了一種基于層次分析法(AHP)和進化博弈理論的網(wǎng)絡(luò)選擇接入策略,實現(xiàn)了在充分保證用戶QoS和用戶之間公平性的基礎(chǔ)上,降低了終端能耗,提升了用戶終端的續(xù)航能力。最后本文在第五章中基于第四章的異構(gòu)無線網(wǎng)絡(luò)場景,綜合考慮用戶側(cè)利益和網(wǎng)絡(luò)側(cè)利益提出了一種基于改進TOPSIS分析法和匹配博弈的網(wǎng)絡(luò)選擇策略。把網(wǎng)絡(luò)選擇過程描述成一個匹配博弈的過程;仿真結(jié)果顯示,和只考慮用戶側(cè)利益或者只考慮網(wǎng)絡(luò)側(cè)的網(wǎng)絡(luò)選擇策略比較,本章所提策略有效提高了系統(tǒng)的平均滿意度并且實現(xiàn)了異構(gòu)無線網(wǎng)絡(luò)系統(tǒng)的負載均衡。
[Abstract]:Heterogeneous wireless network is one of the main trends of mobile communication in the future. It can make use of the characteristics of different networks and network resources to provide users with better and better diversified services. As a research hotspot in heterogeneous wireless networks, network selection access strategy is mainly to solve the problem of improving the quality of service of users and the performance of heterogeneous wireless networks as a whole. As an effective tool for analyzing problems, game theory is widely used in heterogeneous wireless networks. In this paper, the selection strategy optimization of heterogeneous wireless networks based on game theory is analyzed and studied. The main work is as follows: firstly, this paper uses evolutionary game model to model the two-layer heterogeneous wireless cellular network, and then defines the payment function model according to our optimization objectives. Then the dynamic behavior of users in the process of network selection is described by the imitator dynamic model and the equilibrium strategy is solved. Through the simulation results we can see that the income of all users tends to the average income of all users in the network. Improved user fairness and system energy efficiency. Then this paper extends the network scene and studies the scenario of heterogeneous wireless network which is composed of multiple network systems and has a variety of user service request types. A network selective access strategy based on analytic hierarchy process (AHP) and evolutionary game theory is proposed in this paper, which can reduce terminal energy consumption and enhance terminal's ability to maintain the fairness between user QoS and user. Finally, in chapter 5, based on the scenario of heterogeneous wireless networks in Chapter 4, a network selection strategy based on improved TOPSIS analysis and matching game is proposed, which considers both user-side and network-side interests. The network selection process is described as a match game process. The simulation results show that compared with the network selection strategy which only considers the user side interests or the network side, the strategy proposed in this chapter effectively improves the average satisfaction of the system and realizes the load balancing of heterogeneous wireless network systems.
【學(xué)位授予單位】：合肥工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TN929.5

【參考文獻】

相關(guān)期刊論文 前6條

1 尤肖虎;潘志文;高西奇;曹淑敏;鄔賀銓;;5G移動通信發(fā)展趨勢與若干關(guān)鍵技術(shù)[J];中國科學(xué):信息科學(xué);2014年05期

2 龔潔;黃濤;明慧芳;;WLAN/LTE異構(gòu)網(wǎng)絡(luò)中網(wǎng)絡(luò)選擇優(yōu)化算法[J];電視技術(shù);2013年03期

3 王燁;李雨生;;穩(wěn)定匹配問題中的納什均衡[J];同濟大學(xué)學(xué)報(自然科學(xué)版);2013年01期

4 徐鵬;方旭明;向征;陳美榮;;異構(gòu)網(wǎng)絡(luò)選擇的一種新博弈模型[J];電訊技術(shù);2011年02期

5 劉勝美;孟慶民;潘u&;糜正琨;;異構(gòu)無線網(wǎng)絡(luò)中基于SINR和層次分析法的SAW垂直切換算法研究[J];電子與信息學(xué)報;2011年01期

6 曹淑敏;;走向?qū)拵Х涸诘臒o線移動通信[J];世界電信;2009年12期

，

本文編號：2310270