指導教授：張進福臺灣大學：電信工程學研究所林奕劭Lin, Yi-ShaoYi-ShaoLin2014-11-302018-07-052014-11-302018-07-052014http://ntur.lib.ntu.edu.tw//handle/246246/264330重疊式蜂巢網路中之設備對設備 (Device-to-device, D2D) 通信已成為一項可以改善頻帶使用效率的重要技術。在D2D通信中，使用者裝置 (user equipment, UE) 能夠藉由重疊使用已被使用之通信頻帶使得D2D通信設備彼此之間直接進行通信而不是使用上、下行鏈路經由基地台轉送的傳統行動通信模式。然而，若沒有適當的干擾控制機制，則D2D連線產生的干擾會使得現有之通信網路無法滿足其服務品質 (quality-of-service, QoS) 的需求。本論文中，基於D2D通信的資源分配，我們提出了一些方法讓多對D2D連線在滿足D2D使用者與蜂巢網路使用者 (cellular users, CUs)之信號與干擾加雜訊比 (SINR) 的要求下和CU共享其上行頻帶。我們使用這方法來檢查當一對新的D2D連線被選擇加入後，對所有已加入的D2D連線和蜂巢網路使用者的SINR需求是否都能被滿足來判斷此D2D連線是否能共享此資源。除此之外，當有多餘的頻帶資源空出時，我們也提出了在滿足所有使用者SINR需求的情況下讓D2D使用這些多餘的資源。基於干擾量由小到大的次序來選擇之配對機制，本論文之資源分配法具系統性，且複雜度不高。在這樣的資源分配機制下，使得整體系統在不同環境中仍有良好的擴充性。模擬結果顯示，在重疊式蜂巢網路中能夠顯著地增加D2D連線的數量並且改善整體系統的產出率。Device-to-device (D2D) communications underlaying cellular networks have been considered as an important technology to improve spectral efficiency. In D2D communications, rather than using uplink and downlink spectrums via the base station, the user equipment (UE) communicated directly between each other by reusing the cellular spectrum. However, D2D links may cause interferences to traditional cellular system and make quality-of-service (QoS) requirements not be satisfied for both D2D links and cellular users (CUs) if the interference has not be controlled properly. In this thesis, in order to do the resource allocation for D2D communications, we proposed a scheme to allow multiple number of D2D links sharing the spectrum with cellular users while guaranteeing the signal-to-interference-plus-noise ratios (SINRs) for both D2D users and CUs. The scheme checks whether all the SINR requirements of CUs and D2D users can be satisfied when a new D2D pair is admitted. Besides, when there are spare spectra, D2D pairs can share these spare spectra while all admitted D2D pairs SINR requirements must be satisfied. We checked the admitted D2D pairs based on ordered interference amounts which made our method systematic and with lower computational complexity. Based on our resource allocation method, the system can be adapted in different environments. The simulation results show that IF can significantly increase the number of admissible D2D pairs as well as improve the system throughput in underlaying cellular networks.口試委員會審定書 # 誌謝 i 中文摘要 ii ABSTRACT iii CONTENTS iv LIST OF FIGURES viii LIST OF TABLES x Chapter 1 緒論(Introduction) 1 1.1 研究背景與現況(Background and Current Status) 1 1.2 設備對設備通信(Device-to-device Communications) 2 1.2.1 設備對設備通信之環境(Device-to-device Communications Scenarios) 2 1.2.2 設備對設備通信的優點(Benefits of Device-to-device Communications) 5 1.2.3 設備對設備通信之技術和挑戰(Techniques and Challenges of Device-to-device Communications) 7 1.2.4 設備對設備通信的應用(Applications of Device-to-device Communications) 10 1.3 研究動機(Research Motivation) 12 1.4 論文架構(Organization of the Thesis) 13 Chapter 2 在重疊式蜂巢網路中設備對設備通信基於干擾量之資源分配(Interference-based Resource Allocation for Device-to-device Communications Underlaying Cellular Networks) 16 2.1 文獻探討(Related Work) 16 2.2 系統模型(System Model) 17 2.2.1 網路拓樸(Network Topology) 17 2.2.2 問題描述(Problem Formulation) 18 2.3 干擾注入法(Interference-filling Algorithm) 21 2.4 模擬結果與討論(Simulation Results and Discussion) 23 2.4.1 模擬結果(Simulation Results) 24 2.4.2 複雜度分析(Complexity Analysis) 28 2.5 本章回顧與總結(Conclusion) 29 Chapter 3 在有空白頻帶情況下之重疊式蜂巢網路中設備對設備通信之資源分配(Resource Allocation with Spare Resource for Device-to-device Communications Underlaying Cellular Networks) 31 3.1 系統模型(System Model) 31 3.1.1 網路拓樸(Network Topology) 32 3.1.2 問題描述(Problem Formulation) 33 3.2 在有空白頻帶情況下之資源分配(Resource Allocation with Spare Resource) 35 3.2.1 後分配空白頻帶(Post-allocating Spare Resource) 35 3.2.2 先分配空白頻帶(Pre-allocating Spare Resource) 37 3.3 模擬結果與討論(Simulation Results and Discussion) 38 3.3.1 模擬結果(Simulation Results) 38 3.3.2 複雜度分析(Complexity Analysis) 42 3.4 本章回顧與總結(Conclusion) 42 Chapter 4 重疊式蜂巢網路中設備對設備通信之群組資源分配(Group-wise Resource Allocation for Device-to-device Communications Underlaying Cellular Networks) 44 4.1 系統模型(System Model) 44 4.1.1 網路拓樸(Network Topology) 44 4.1.2 問題描述(Problem Formulation) 45 4.2 群組資源分配(Group-wise Resource Allocation) 46 4.3 模擬結果與討論(Simulation Results and Discussion) 48 4.3.1 模擬結果(Simulation Results) 48 4.3.2 複雜度分析(Complexity Analysis) 50 4.4 本章回顧與總結(Conclusion) 50 Chapter 5 在重疊式蜂巢網路中設備對設備通信干擾注入法之功率控制(Power Control of Interference-filling for Device-to-device Communications Underlaying Cellular Networks) 53 5.1 系統模型(System Model) 53 5.1.1 網路拓樸(Network Topology) 53 5.1.2 問題描述(Problem Formulation) 54 5.2 干擾注入法之功率控制(Power Control of Interference-filling) 55 5.3 模擬結果與討論(Simulation Results and Discussion) 60 5.4 本章回顧與總結(Conclusion) 64 Chapter 6 結論(Conclusion) 66 REFERENCE 705017352 bytesapplication/pdf論文公開時間：2016/07/29論文使用權限：同意有償授權(權利金給回饋學校)設備對設備通信服務品質資源分配信號與干擾加雜訊比上行鏈路重疊式蜂巢網路thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/264330/1/ntu-103-R01942031-1.pdf