【摘要】：隨著移動(dòng)終端設(shè)備的廣泛應(yīng)用,無線業(yè)務(wù)量呈現(xiàn)出了前所未有的增長(zhǎng)態(tài)勢(shì)。與此同時(shí),無線通信的發(fā)展也伴隨著對(duì)能量需求的增長(zhǎng),能量消耗的升高,不僅會(huì)增加CO2的排放量,污染環(huán)境,還同時(shí)會(huì)增加運(yùn)營商的運(yùn)營成本,直接影響其經(jīng)濟(jì)效益。本文研究的目的是如何利用資源分配技術(shù)來提高異構(gòu)網(wǎng)絡(luò)中的能量效率,以及如何充分利用異構(gòu)網(wǎng)絡(luò)的中繼節(jié)點(diǎn)來降低運(yùn)營商的部署成本,本文的主要研究?jī)?nèi)容如下:為了充分利用異構(gòu)網(wǎng)絡(luò)資源,對(duì)基站和中繼節(jié)點(diǎn)的能量消耗進(jìn)行建模,能量消耗模型中考慮了除發(fā)射天線外其他部件的能量消耗,并建立了網(wǎng)絡(luò)的能量效率模型;針對(duì)單中繼和多中繼選擇的場(chǎng)景分別進(jìn)行了分析,建立了對(duì)應(yīng)的優(yōu)化問題,并進(jìn)一步給出了相應(yīng)的求解算法。分別對(duì)比了單中繼和多中繼選擇場(chǎng)景下的能量效率、能量消耗和頻譜效率。從仿真結(jié)果得知,采用多中繼選擇策略可以獲得較高的頻譜效率,采用單中繼選擇策略可以減少能量消耗,獲得較高的能量效率。為了減少運(yùn)營商的部署成本以及降低運(yùn)營商對(duì)基站的管理難度,提出了一種基于合作眾包的異構(gòu)中繼網(wǎng)絡(luò)傳輸策略,這種傳輸策略通過充分利用第三方利益團(tuán)體部署的小型中繼節(jié)點(diǎn),在降低能量消耗的同時(shí),減少了運(yùn)營商的設(shè)備和管理成本。為了激勵(lì)第三方利益團(tuán)體部署的中繼節(jié)點(diǎn)參與合作傳輸,利用了博弈論等數(shù)學(xué)工具設(shè)計(jì)了一種基于合作眾包的激勵(lì)機(jī)制,即基站發(fā)布傳輸任務(wù)和報(bào)酬,招募參與合作傳輸?shù)闹欣^節(jié)點(diǎn)完成傳輸任務(wù)并分給其相應(yīng)的報(bào)酬。從仿真結(jié)果可知,采用這種基于合作眾包的傳輸激勵(lì)機(jī)制,與直傳相比,在放大轉(zhuǎn)發(fā)和解碼轉(zhuǎn)發(fā)模式下,一方面可以提高運(yùn)營商從傳輸中獲得收益以及提高了能量效率,提高用戶的頻譜效率;另一方面,被招募的第三方利益團(tuán)體部署的空閑中繼節(jié)點(diǎn)還可以通過參與合作傳輸分得相應(yīng)的報(bào)酬。由于異構(gòu)網(wǎng)絡(luò)中繼的發(fā)射功率較低且傳輸距離有限,為了保證中繼的傳輸質(zhì)量,本章設(shè)計(jì)了一種基于合作眾包的多跳中繼異構(gòu)網(wǎng)絡(luò)的傳輸激勵(lì)機(jī)制。在這個(gè)激勵(lì)機(jī)制中,基站和中繼都可以作為任務(wù)的發(fā)布者,即招募下一跳的中繼節(jié)點(diǎn)參與合作傳輸并給予其相應(yīng)的報(bào)酬。利用博弈論對(duì)基站招募中繼節(jié)點(diǎn),中繼招募中繼節(jié)點(diǎn)的激勵(lì)機(jī)制進(jìn)行建模,并給出了基站與中繼策略的相應(yīng)計(jì)算方法。通過仿真結(jié)果可知,運(yùn)營商通過采用多跳中繼傳輸激勵(lì)機(jī)制的所得收益高于兩跳中繼以及直傳所得的收益,網(wǎng)絡(luò)的頻譜效率和能量效率也得到相應(yīng)的提高。
[Abstract]:With the wide application of mobile terminal devices, wireless traffic has shown an unprecedented growth trend. At the same time, the development of wireless communication is accompanied by the increase of energy demand and energy consumption, which will not only increase the emissions of CO2, pollute the environment, but also increase the operating cost of operators and directly affect their economic benefits. The purpose of this paper is to use resource allocation technology to improve energy efficiency in heterogeneous networks and how to make full use of relay nodes in heterogeneous networks to reduce the deployment cost of operators. The main contents of this paper are as follows: in order to make full use of heterogeneous network resources, the energy consumption of base station and relay node is modeled, and the energy consumption of other components except transmitting antenna is considered in the energy consumption model. The energy efficiency model of the network is established. The scenarios of single relay and multiple relay selection are analyzed, the corresponding optimization problems are established, and the corresponding algorithms are given. The energy efficiency, energy consumption and spectrum efficiency of single relay and multiple relay selection scenarios are compared respectively. The simulation results show that the multi-relay selection strategy can achieve high spectral efficiency, and the single-relay selection strategy can reduce the energy consumption and achieve higher energy efficiency. In order to reduce the deployment cost of operators and reduce the difficulty of management of base stations, a heterogeneous relay network transmission strategy based on cooperative crowdsourcing is proposed. By making full use of the small relay nodes deployed by third-party interest groups, this transmission strategy can reduce the energy consumption and reduce the equipment and management costs of the operators. In order to encourage relay nodes deployed by third-party interest groups to participate in cooperative transmission, an incentive mechanism based on cooperative crowdsourcing is designed by using mathematical tools such as game theory, that is, the base station issues transmission tasks and rewards. The relay nodes involved in cooperative transmission are recruited to complete the transmission task and are given the corresponding reward. From the simulation results, we can see that compared with direct transmission, the transmission incentive mechanism based on cooperative crowdsourcing can, on the one hand, improve the carrier's income from transmission and improve energy efficiency, compared with direct transmission, in the mode of amplification, forwarding and decoding. Improving the spectrum efficiency of users; On the other hand, the idle relay nodes deployed by the recruited third party interest groups can also be paid by participating in cooperative transmission. Due to the low transmission power and limited transmission distance of heterogeneous network relay, in order to ensure the transmission quality of relay, this chapter designs a transmission incentive mechanism for multi-hop relay heterogeneous network based on cooperative crowdsourcing. In this incentive mechanism, both the base station and the relay can be the publishers of the task, that is, recruit the next hop relay node to participate in the cooperative transmission and give the corresponding reward. The game theory is used to model the incentive mechanism of base station recruiting relay node and relay recruiting node, and the corresponding calculation method of base station and relay strategy is given. The simulation results show that the revenue of multi-hop relay transmission incentive mechanism is higher than that of two-hop relay and direct transmission, and the spectral efficiency and energy efficiency of the network are also improved accordingly.
【學(xué)位授予單位】：哈爾濱工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN92

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