在第四代行動通訊(4G)中，正交分頻多工系統(OFDM)是被廣泛使用的調變系統，但其每個子載波之間因為通道和環境因素，而產生非常大的旁帶，進而造成載波間干擾(ICI)，濾波器組多載波系統(FBMC)因而被提出來克服OFDM系統中的ICI影響，但是由於FBMC系統是將每一子載波進行濾波，如此一來更造成了高複雜度以及符元的時間變長，通用濾波多載波系統(UFMC)結合了兩系統之優點，將一個資源區塊(RB) 的資料經過一個客製化濾波器，以達到降低旁帶以及減少複雜度和濾波器長度。也因如此，UFMC被認為是第五代行動通訊標準(5G)的候選之一。
在長期演進技術進階版(LTE-A)中，載波聚合(CA)為其中重要的技術之一，利用不同頻段的載波分量進行聚合，提升高傳輸速度。因此本篇論文提出載波聚合應用於通用濾波多載波(CA-UFMC)來提升UFMC系統的傳輸速度，並且對於其誤碼率(BER)進行分析；在UFMC系統中，也適用所有OFDM系統之接收端架構，本篇論文也對於不同接收端進行分析。接著嘗試使用不同濾波器應用在CA-UFMC系統中，來達到更高的傳輸品質。

Orthogonal Frequency Division multiplexing(OFDM) system is widely used in the 4th generation of mobile phone mobile communication technology standards (4G). However, the system exists inter-carrier interference (ICI) which caused by the high spectral sidelobe level of each subcarrier in channel or interface. Filter-bank multi-carrier (FBMC) system has been proposed to overcome this problem, but it also turns out that the huge complexity and long symbol duration become the drawbacks of FBMC. Universal-filtered Multi-carrier (UFMC) system that was proposed to combine the advantages of two system uses a filtering operation which applies to a resource block (RB) to suppress the sidelobe of OFDM and reduce the complexity of FBMC. Also, UFMC is a candidate waveform for the next generation of wireless communication.
Carrier Aggregation (CA) is one of the most important technique in LTE-Advanced. By aggregating carrier components (CC) in different spectral, the system can highly increase the data rate. Therefore, in this paper, we propose a system called Carrier Aggregation in Universal-filtered Multi-carrier (CA-UFMC) system to improve the data rate in UFMC system. Moreover, we analyze the bit-error rate in the system. UFMC system can also apply the detection scheme in OFDM, so we compare them in the proposed system. Further, we use different filter types to the system to achieve high quality of signal.

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