隨著網際網路日漸發達以及行動裝置的普及率日漸攀升，當今社會中對於裝置間無線通訊網路(Device-to-Device Wireless Communication)技術的需求也在與日俱增。為了跟上目前發展趨勢所要求的頻譜效率(Spectrum Efficiency)，可以發現在現今的5G研究中使用能夠在同一頻率段同時接收和傳送訊號的全雙工(Full-Duplex)技術已是勢在必行。另外，近年來在5G的網路研究中混和式自動重送請求(Hybrid Automatic Repeat reQuest, HARQ)技術也逐漸受人關注，此技術能使得傳輸的可靠性得到大幅的提升。除此之外，功率控制(Power Control)亦是本文將討論的議題之一，本篇論文將把兩種不同的功率控制法：固定功率(Constant Power)和通道倒置(Channel Inversion)加入系統後進行討論。因此，本文的研究架構即是在裝置間無線通訊傳輸中建立一個全雙工裝置間無線通訊網路(Full-Duplex Device-to-Device Wireless Network)，並藉由結合不同種的混和式自動重送請求(HARQ)及功率控制(Power Control)後形成的不同系統，探討各系統的錯誤率、平均重傳次數以及頻譜效率。另外，在本篇論文中也將利用CME法作為逆拉普拉斯數值分析法去協助求解。

Nowadays, while the network technology is developing and the popularity of mobile device is decreasing, the importance of Device-to-Device(D2D) Communication System rapidly increased. Also, Full-Duplex(FD) technology which allows transmit and receive packet at the same time and the same frequency has come to be one of the most significant trends because of the require of high spectrum efficiency. However, applying full-duplex technology might cause unreliable transmission due to higher instantaneous data rate. To solve the problem, we’re going to apply Hybrid Automatic Retransmission Request(HARQ) to our model in this paper. Hybrid-ARQ provides reliable transmission by combing the protocol that can retransmit packet, Automatic Retransmission Request (ARQ), with channel coding. Moreover, the influence of using channel inversion, one of the power control method, is also a discussion in our paper. Thus, we are going to create a full-duplex device-to-device wireless network, then observe how each system that applies different types of HARQ and channel inversion works at outage probability, average number of retransmission, and spectrum efficiency.

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