本文選題：D2D + 干擾管理��； 參考：《南京郵電大學(xué)》2017年碩士論文

【摘要】：LTE網(wǎng)絡(luò)下的D2D通信是一種鄰近用戶無需經(jīng)過基站或核心網(wǎng)而直接通信的新型通信技術(shù)。D2D通信技術(shù)的優(yōu)勢在于可以增強(qiáng)網(wǎng)絡(luò)性能,如提高頻譜效率、減少通信時延、增大系統(tǒng)吞吐量等。但是,D2D通信對蜂窩網(wǎng)絡(luò)會產(chǎn)生嚴(yán)重干擾,因此必要的干擾管理技術(shù)尤為重要。為了解決干擾問題,本文分別針對一對一、多對一資源復(fù)用方式提出了兩種改進(jìn)的無線資源分配方案,有效降低干擾,從而增強(qiáng)了蜂窩網(wǎng)絡(luò)性能。針對一對一資源復(fù)用方式,本文提出了一種基于穩(wěn)定分配的多回合迭代(Multi-Round Iteration Stable Matching,MRI SM)D2D資源分配方案。在穩(wěn)定分配的基礎(chǔ)上引入多回合迭代算法完成二次或多次優(yōu)化匹配,以最大化系統(tǒng)吞吐量為目標(biāo),使每對D2D復(fù)用更合適的頻譜資源。通過仿真分析可知,該方案能有效優(yōu)化D2D性能,提高系統(tǒng)吞吐量。針對多對一資源復(fù)用方式,本文提出了另一種基于雙重干擾限制區(qū)域分簇(Dual Interference Limited Areas Clustering,DILA-Clustering)的D2D資源分配方案。先以蜂窩用戶為中心構(gòu)建分簇,然后考慮蜂窩用戶和D2D用戶各自的干擾限制區(qū)域,為每對D2D用戶選擇合適的分簇,最后完成資源分配。該方案中D2D采用自由復(fù)用蜂窩用戶所占資源塊的方式進(jìn)入分簇,無需重復(fù)計算多對D2D用戶相互之間的干擾,大大降低了計算復(fù)雜度。仿真表明,本文提出的方案有效提高了D2D的被服務(wù)率,提升了整個蜂窩系統(tǒng)的吞吐量。
[Abstract]:D2D communication in LTE network is a new communication technology, which can communicate directly without passing through base station or core network. The advantage of D2D communication technology is that it can enhance network performance, such as improving spectrum efficiency and reducing communication delay. Increase system throughput, etc. However, D2D communication can cause serious interference to cellular network, so the necessary interference management technology is particularly important. In order to solve the interference problem, two improved radio resource allocation schemes are proposed to reduce interference and enhance the performance of cellular networks. For a resource reuse scheme, a multi-round Iteration Stable matching SM)D2D resource allocation scheme based on stable allocation is proposed in this paper. On the basis of stable allocation, a multi-round iterative algorithm is introduced to achieve the quadratic or multiple optimal matching, which aims at maximizing the system throughput, and makes each pair of D2D multiplexing more suitable spectrum resources. The simulation results show that this scheme can effectively optimize D2D performance and improve system throughput. For many-to-one resource reuse, another D2D resource allocation scheme based on dual Interference Limited Areas clustering (DILA-Clustering) is proposed. Firstly, the cluster is constructed with the cellular user as the center, and then the interference limitation areas of the cellular user and the D2D user are considered to select the appropriate clustering for each pair of D2D users, and finally complete the resource allocation. In this scheme, the free reuse of the resource blocks occupied by cellular users is used to enter the cluster, and the interference between D2D users is not repeatedly calculated, which greatly reduces the computational complexity. Simulation results show that the proposed scheme can effectively improve the D2D service rate and enhance the throughput of the whole cellular system.
【學(xué)位授予單位】：南京郵電大學(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(xiàn)】

相關(guān)期刊論文 前3條

1 何朵奇;王斌;季文君;王文鼐;;LTE網(wǎng)絡(luò)下基于圖著色理論的D2D分簇資源分配方案[J];南京郵電大學(xué)學(xué)報(自然科學(xué)版);2015年06期

2 焦巖;高月紅;楊鴻文;楊大成;;D2D技術(shù)研究現(xiàn)狀及發(fā)展前景[J];電信工程技術(shù)與標(biāo)準(zhǔn)化;2014年06期

3 冉明華;;認(rèn)知無線電頻譜檢測技術(shù)[J];科學(xué)咨詢(決策管理);2010年05期

相關(guān)碩士學(xué)位論文 前2條

1 孫曉梅;LTE網(wǎng)絡(luò)下D2D通信技術(shù)的研究[D];南京郵電大學(xué);2014年

2 榮濤;D2D通信技術(shù)研究[D];南京郵電大學(xué);2013年

，

本文編號：1955938