在本論文中，我們所考慮的是單一的全雙工(full-duplex)基地台，與多位上行和下行使用者的通訊環境。在我們新建立的訊號模型中，考慮了自干擾(self-interference)以及非理想電路(non-ideal circuit)的影響，基於此訊號模型，我們提出能量最小化(power minimization)波束成形設計的問題，探討基地台的傳送、接收波束以及上行使用者的傳輸功率最佳化，而對此問題我們所提出的是交替最佳化(Alternating optimization, AO)方法。此外，我們還探討了極大-極小公平性(Max-min fairness)設計問題，並針對其採用的演算法，分別為交替以及非精準交替的方法。最後，在模擬結果驗證了我們所提出的演算法效能。

In this paper, we consider a full-duplex base station (BS) communicating with a set of downlink and uplink users. We build a new signal model by taking into account the self-interference as well as non-ideal circuit effects. Based on the proposed model, we formulate power minimization beamforming design problem that involves the optimization of the transmit and receive beamformers of the BS and the transmit power of uplink users. An alternating optimization (AO) strategy is proposed. In addition, we consider a max-min fair design formulation and respectively employ an AO and inexact AO strategies to solve the problem. Simulation results are presented to examine the efficacy of the proposed algorithms.

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