本文選題：LTE-Advanced + 載波聚合�。� 參考：《北京交通大學(xué)》2014年碩士論文

【摘要】：隨著移動(dòng)互聯(lián)網(wǎng)絡(luò)的發(fā)展與4G (Generation)技術(shù)的應(yīng)用,人們對(duì)移動(dòng)通信技術(shù)的需求越來越高。研究表明大部分的語音業(yè)務(wù)與數(shù)據(jù)業(yè)務(wù)發(fā)生在室內(nèi),由于建筑物之間的穿墻損耗,如何增強(qiáng)室內(nèi)覆蓋、提高室內(nèi)用戶的數(shù)據(jù)速率成為了無線通信亟需解決的問題。在LTE-Advanced (LTE-A, Long Term Evolution Advanced)系統(tǒng)中,通過家庭基站(HeNB,Home eNB),即Femtocell網(wǎng)絡(luò),可以增強(qiáng)室內(nèi)覆蓋,但也帶來了一些新的挑戰(zhàn),如用戶在宏基站(MeNB, Macro eNB)與家庭基站之間的接入選擇與切換問題、家庭基站與宏基站之間的層間干擾問題、家庭基站與相鄰家庭基站之間的層內(nèi)干擾問題等。 為了提高室內(nèi)用戶帶寬,本文將載波聚合(CA, Carrier Aggregation)技術(shù)應(yīng)用于Femtocell網(wǎng)絡(luò)中,研究LTE-A系統(tǒng)中載波聚合Femtocell網(wǎng)絡(luò)場(chǎng)景下的無線資源管理。本文在宏基站與家庭基站使用正交資源的基礎(chǔ)上,提出了一種分布式的成員載波選擇與沖突避免(CCSCA, Component Carrier Selection and Collision Avoidance)方案,該方案在選擇成員載波(CC, Component Carrier)時(shí),不僅考慮了本小區(qū)對(duì)鄰小區(qū)的輸出干擾及鄰小區(qū)對(duì)本小區(qū)的輸入干擾,還考慮了多個(gè)相鄰小區(qū)選擇同一個(gè)成員載波時(shí)的沖突情況。該方案不僅可以提高Femtocell小區(qū)中用戶(UE, User Equipment)的信干噪比(SINR, Signal to Interference plus Noise Ratio),還可以提高Femtocell小區(qū)的吞吐量。為了提高資源利用率,宏基站與家庭基站可以使用相同的資源,但此時(shí)不得不考慮宏基站與家庭基站之間的層間干擾。本文在干擾代價(jià)與收益函數(shù)的基礎(chǔ)上,還提出了一種分布式的功率控制方案使小區(qū)總效用達(dá)到最大,并且此方案在對(duì)宏用戶(MUE, Macro UE)的效用影響不大的情況下,可以提高家庭用戶(HUE, Home UE)勺效用。
[Abstract]:With the development of mobile Internet and the application of 4G generation technology, the demand for mobile communication technology is increasing. The research shows that most of the voice services and data services take place indoors. Due to the loss of walls between buildings, how to enhance the indoor coverage and improve the data rate of indoor users has become an urgent problem for wireless communication. In LTE-Advanced LTE-A, long term Evolution Advanced system, indoor coverage can be enhanced through the home NBN network of home base stations, or Femtocell networks, but it also brings some new challenges, such as access selection and handover between Acer stations MeNB, Macro eNB) and home base stations. The interlayer interference between the home base station and the macro base station, the interlayer interference between the family base station and the adjacent family base station, and so on. In order to improve the bandwidth of indoor users, Carrier aggregation (CA) technology is applied to Femtocell network in LTE-A system to study the wireless resource management in the scenario of carrier aggregation Femtocell network. Based on the use of orthogonal resources between Acer stations and home base stations, this paper proposes a distributed member carrier selection and collision avoidance (CCSCA) scheme, in which the component Carrier selection and collision avoidance (CCSCA) scheme is used to select the member carriers CCS (component Carrier). Not only the output interference of the cell to the adjacent cell and the input interference of the adjacent cell to the cell are considered, but also the conflict when several adjacent cells select the same member carrier is considered. This scheme can not only improve the signal-to-noise ratio (SINR), signal to interference plus (Noise), but also improve the throughput of Femtocell cell. In order to improve resource utilization, Acer station and home base station can use the same resources, but the interlayer interference between the base station and the home station has to be considered. Based on the interference cost and benefit function, this paper also proposes a distributed power control scheme to maximize the total utility of the cell, and this scheme has little effect on the utility of macro users, such as Mue, Macro UE. It can improve the utility of home users such as HUEA, Home UED.
【學(xué)位授予單位】：北京交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN929.5

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