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Conference Paper
Implementation of Carrier Recovery with Large Frequency Acquisition Range for Cable Modem Downstream
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- Authors
- Eung-Don Lee, Jeong-Been Kim, Yun-Jeong Song, Jae Min Ahn
- Issue Date
- 2007-06
- Citation
- International Symposium on Consumer Electronics (ISCE) 2007, pp.1-6
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we designed a carrier recovery with small loop delay based on polarity-decision phase detector algorithm with large frequency acquisition range that is useful for cable modem downstream. To reduce loop delay we design a phase detector with look-up table, a digital controlled oscillator (DCO) with simple modular operation, and an index search of sine/cosine table. Simulations show that the newly designed carrier recovery can yield the bit error rate (BER) performance compared to floating-point simulated carrier recovery in large carrier frequency offset under high order quadrature amplitude modulation (QAM).