在第五代 (5G) 無線通訊系統中，使用毫米波(mmWave)搭配設備到設備(D2D)通信被認為是有希望的科技以提供更好的服務質量(QoS)。 除此之外，將非正交多工(NOMA)併發傳輸技術嵌入D2D毫米波通信網絡是提高頻譜利用率的重要突破之一。在本文中，我們研究了一種 NOMA 輔助瓶頸效應消除 (NABE) 方案，以提高毫米波網絡中的頻譜效率。試圖利用NOMA技術，優化NOMA功率分配係數來消除瓶頸問題。通過仿真結果驗證，我提出的 NABE 方案的性能優於傳統的全雙工方案。

Recently, device-to-device (D2D) communication using millimeter-wave (mmWave) is considered to be a promising technology to provide better Quality of Service (QoS) in the fifthgeneration (5G) wireless communication system. Moreover, embedding the non-orthogonal multiple access (NOMA) concurrent transmission technology into D2D mmWave communication network is one of the important breakthroughs to increase spectrum utilization. In this paper, we investigated a NOMA-Aided Bottleneck Elimination (NABE) scheme to improve the spectrum efficiency in mmWave network. This purpose attempts to use NOMA technology, optimal the coefficient of NOMA power allocation to eliminate the bottleneck problem. Verified by the simulation results, the performance of my proposed NABE scheme is better than the conventional full-duplex scheme.

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