標題: | Joint carrier recovery and multimodulus blind decision-feedback equalization under high-order QAM |
作者: | Hung, KC Lin, DW 電子工程學系及電子研究所 Department of Electronics Engineering and Institute of Electronics |
公開日期: | 2004 |
摘要: | The multimodulus algorithm (MMA) for blind equalization has good performance, but can only tolerate small carrier frequency offsets under high-order QAM. We propose a structure for joint carrier recovery (CR) and blind decision-feedback equalization (DFE), where the DFE is MMA-based. It turns out that a key point is the design and analysis of reduced-constellation phase detectors (PDs) that can facilitate a wide frequency lock range and make the CR loop converge in severe intersymbol interference and noise. Based on this, we design a multistage startup procedure for joint blind DFE and CR. Simulations show that the procedure can yield fast convergence in large carrier frequency errors under high-order QAM. |
URI: | http://hdl.handle.net/11536/18109 |
ISBN: | 0-7803-8794-5 |
期刊: | GLOBECOM '04: IEEE GLOBAL TELECOMMUNICATIONS CONFERENCE, VOLS 1-6 |
起始頁: | 2281 |
結束頁: | 2285 |
顯示於類別: | 會議論文 |