單一載波、正交分頻多工、濾波器組三模組基頻接收機系統於60GHZ頻帶應用

Abstract

在本論文中提出了針對60 GHz頻帶應用的單一載波、正交分頻多工、濾波器組三模組數位基頻接收器設計。這些數位基頻接收器兼容於IEEE 802.15.3c和IEEE 802.11ad規格中之單一載波和正交分頻多工雙模式。此三模組是根據IEEE 802.15.3c和IEEE 802.11ad規格設計出包含全數位同步模組、多相濾波器組、通道等化器、高吞吐量快速傅利葉轉換和相位雜訊消除器的數位基頻接收器。為了滿足可適用於2.64 GHz取樣率，本文所提的數位基頻接收器設計採用八倍平行且無反饋追踪路徑的設計。 在濾波器組的設計中，時域-頻域的響應與多相快速複利葉架構先推導出來。八倍平行、兩組的濾波器組-偏位正交振幅調變架構以交叉存取多相網絡 之名提出。交叉存取多相網絡由記憶體選擇器、濾波值挑選、旋基混洗運作三個模組組成。各個模組由各種方式減少面積，結果此提出的交叉存取多相網絡將只花費一般濾波器組-偏位正交振幅調變架構的65%面積。 提出的濾波器組架構在頻域與時域效率高於正交分頻多工16.8%，濾波器組架構硬體設計的傳輸訊號量將會達到 21.4 Gbps，其值高於單一載波的7 Gbps和正交分頻多工的14 Gbps。

In this thesis, SC-OFDM-FBMC triple Mode baseband receiver system for 60GHz application is proposed. The triple-mode digital baseband receiver based on IEEE 802.15.3c and IEEE 802.11ad is composed by all-digital synchronization, poly-phase filter-bank, channel equalizer, high throughput FFT and PNC. In order to ease the clock rate, the modules of digital baseband are designed with 8X-parallelism without feedback tracking loop to meet the 2.64 GHz sampling rate. In the design of FBMC, the time-frequency response and the form of PPN-FFT architecture for FBMC system are derived first. A 8 times parallel two sets FBMC-OQAM architecture called Interleaving Poly-phase Network (I-PPN) is proposed. The proposed I-PPN includes 3 main modules named as Memory Multiplexer, Filter Coefficient Selection and Shuffling Convolution. Each module used specific ways to reduce the area. As a result, the area of the proposed I-PPN only cost 65% area of the formal design for PPN FBMC-OQAM . Spectrum efficiency/ Bandwidth of FBMC is 16.8% higher than OFDM. In hardware desgin, the proposed FBMC hardware achieve the 21.4 Gbps, which is higher than SC 7 Gbps and OFDM 14 Gbps due to the higher frequency and time domain efficiency.