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.
原文 | English |
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頁面 | 2281-2285 |
頁數 | 5 |
DOIs | |
出版狀態 | Published - 2004 |
事件 | GLOBECOM'04 - IEEE Global Telecommunications Conference - Dallas, TX, 美國 持續時間: 29 11月 2004 → 3 12月 2004 |
Conference
Conference | GLOBECOM'04 - IEEE Global Telecommunications Conference |
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國家/地區 | 美國 |
城市 | Dallas, TX |
期間 | 29/11/04 → 3/12/04 |