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