隨著科技日新月異，現今網路的發展也越來越發達，人們的生活與無線網路的應用也密不可分。為了能隨時享有網路的便利，每一個人都會有一台甚至多台的行動裝置，對於網路的需求也不斷地增加。因此，如何能夠利用有限資源達到快速且穩定的網路服務品質，而且還能夠同時達到節能減碳、綠色節能就是我們的期望。為了達到這目標，如果只單靠傳統大基地台是不夠的，所以我們在原先的大基地台底下新增小型基地台，藉此降低大基地台所造成的干擾，達到更好的能量效益。本論文主旨為系統使用NOMA的情況下，加入協調式多點傳輸，以提升網路整體更好的能量效益。然後建立在建立出數學模型，使用C++結合CPLEX來進行模擬，得到整個模型的最佳解，再去比較與分析在不同情況下的結果。

With the rapid development of technology, the development of the Internet is becoming more and more developed, and people's lives are inseparable from the application of wireless networks. In order to enjoy the convenience of the Internet at any time, everyone has one or more mobile devices, and the demand for the Internet is constantly increasing. Therefore, how to use limited resources to achieve fast and stable network service quality, but also to achieve energy saving and carbon reduction, green energy saving is our expectation. In order to achieve this goal, it is not enough to rely solely on traditional macro base stations. Therefore, we have added small base stations under the original large base stations to reduce the interference caused by large base stations and achieve better energy efficiency. The purpose of this paper is to add coordinated multi-point transmission when the system uses NOMA to improve the overall energy efficiency of the network. Then build a mathematical model, use C + + combined with CPLEX to simulate, get the best solution of the whole model, and then compare and analyze the results in different situations.

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