在現今網路通訊發達的時代，無線網路的應用與人們的生活變得密不可分，因此，如何能更有效率地利用有限的資源，維持穩定且快速的網路服務品質，並同時達到節能減碳、綠色節能則是我們的目標。為應對上述目標，我們應用協調式多點傳輸，改善總消耗功率及傳輸速率的情況，使得在能量效益的表現上能比傳統網路架構有明顯的進展，同樣也希望在高傳輸速率下追求更好的能量效益。本論文主旨為系統在合作式架構下，讓能量效益--傳輸速率與總功率消耗之比達到最佳，原數學模型為混合整數非線性分數規劃(Mixed Integer Nonlinear Fractional Programming)問題，屬於NP-hard的高複雜度問題，我們透過數學技巧Piecewise-RLT以及對數項近似技巧來簡化最初的模型，並使用CCT轉換(Charnes-Cooper Transformation)將分數部分取代，最後再使用Branch and Cut演算法來求得最佳解。

In the era of developed Internet communication nowadays,application of wireless Internet and human’s life become inseparable.Therefore,how to utilize limited resources more efficiently,maintaining stable and rapid quality of Internet service,reaching energy efficiency and carbon reduction and green energy-saving at the same time is our goal.To cope with above objects,we apply coordinated multipoint transmission,improving the situations of total power consumption and transmission rate,making the performance of energy efficiency better than traditional network architecture.Similary,we hope to pursue better energy efficiency at high transmission rate.The subject matter of this paper hope to make energy efficiency—transmission rate and total power consumption ratio best in the cooperative architecture.Our original mathematic model is Mixed Integer Nonlinear Fractional Programming problem,belonging to NP-hard high complexity problem.We use mathematic skill Piecewise-RLT and Logarithmic approximation technique to simplify initial model,and we replace the fractional part by Charnes-Cooper Transformation,using Branch and Cut algorithm to find optimal solution finally.

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