近年來，為了要達到更節省頻寬的使用，使用全雙工(Full-Duplex)中繼系統變成一個非常熱門的議題，然而還不能夠普遍發展的原因就是在這樣的架構下，自我干擾(Self-Interference)會強烈影響訊號傳遞準確性。為了使此架構能夠實行，干擾消除的方式是必要的處理方式。在一般的干擾消除下，只能做到把消除的程度做到相近，因此我們提出若是先在類比訊號作一次自我干擾消除，再者，將訊號轉換成數位訊號，再以數位訊號傳輸，並利用奇異值分解的方式去做到在數位端的自我干擾消除，則會有很顯著的效果去還原原本訊號，使其不受干擾，我們稱以上的方法為混和型式的自我干擾消除(Hybrid Self-Interference Cancelation)。除此之外，我們考慮到再一些比較接近於現實的環境下進行，因次，我們使用了多天線正交分(Multi Input and Multi
Output-Orthogonal frequency division multiplexing)頻多工去模擬，並且考慮到在不同的環境下，所得到的訊號表現。

The currently spotlighted two-way relaying is a promising one to boost the end-to-end capacity with no need of any extra bandwidth requisition. By de finition, the two-way
relaying can simultaneously, rather than separately, transmit and receive packets via a speci c non-orthogonal channel such that the capacity can be doubled, compared with the conventional one-way (or half-duplex in other words) counterpart. In the full-duplex systems. In two-way relaying, however, the self-interference (SI) is fatal to its practical applications, since this kind of SI is much stronger than the desired received signals. A
better way is cancelation scheme should be consider and the proposed hybrid cancelation method is based on Singular value decomposition. We analyze the performance of full-duplex MIMO-OFDM transceivers with subtractive self-interference cancelation in the hybrid system which includes the digital and analog domain. Furthermore, we also highlight the the trade-o between the analog cancelation and digital cancelation.

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