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In current ultra-wideband (UWB) baseband synchronizer approaches, the parallel architecture is used to achieve over 500 MSamples/s throughput requirement. Therefore achieving low power and less area becomes the challenge of UWB baseband design. In this paper, a low-complexity synchronizer combining data-partition-based correlation algorithms and dynamic-threshold design is proposed for orthogonal frequency division multiplexing based UWB system. It provides a methodology to reduce design complexity with an acceptable performance loss. Based on the data-partition algorithms, both single auto-correlator and moving-average-free matched filter are developed with 528 Msample/s throughput for the 480 Mb/s UWB design. Simulation results show the synchronization loss can be limited to 0.8-dB signal-to-noise ratio for 8% system packet-error rate
Published in:
Circuits and Systems II: Express Briefs, IEEE Transactions on
(Volume:53
,
Issue:
11
)
Date of Publication: Nov. 2006
- Page(s):
- 1269 - 1273
- ISSN :
- 1549-7747
- INSPEC Accession Number:
- 9173863
- Digital Object Identifier :
- 10.1109/TCSII.2006.882804
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 13 November 2006
- Issue Date :
- Nov. 2006
- Sponsored by :
- IEEE Circuits and Systems Society
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