本論文之目標在增進毫米波高密度網路中裝置間通訊的共時傳輸效率。
為達成此目標，我們提出了節能功率調整方案以控制因共時傳輸所增加的多重接取干擾。其中，我們採用了非線性分數規劃方法將非線性功率最佳化問題轉換成線性函數。再者，我們也應用了非合作賽局理論之模型設計其功率調整方案；同時經由Karush-Kuhn-Tucker最佳化條件之計算取得其最佳傳輸功率。根據此功率調整方法，我們修訂了傳統的頂點複合著色共時傳輸方案以促使網路能容納較多的設備間傳輸對；而其主要概念在於採用總傳輸率而非傳統的個別傳輸率判斷共時傳輸之可行性。經由模擬驗證，我們所提出之共時傳輸方案在能量使用效率、時間利用率以及可容納之設備間傳輸對等方面皆能明顯優於傳統方法。

In this thesis, we target on improving the e ciency of the concurrent transmissions for the hyper-dense device-to-device (D2D) networks using the millimeter wave (mmWave) transmission technology. To this end, the increment of the multiple access interference is well controlled by the proposed energy-e cient (EE) power adjustment scheme. Therein, the nonlinear fractional programming technique is rstly applied to transform the nonlinear optimization problem into the linear form. Then, the transmission power of the D2D pairs is formulated as the noncooperative Game. Via the well-known Karush-Kuhn-Tucker condition, the optimal transmission power can then be decided. With the aid of the EE power adjustment, we modify the conventional vertex multi-coloring concurrent transmission scheme to accommodate more D2D pairs.The main concept is to judge the feasibility of the concurrent transmission based the
sum data rate rather than the individual rate. Via the simulation results, the superiority of the proposed scheme is veri ed in terms of the EE, time utilization and numberof D2D accommodation.

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