A Low-Complexity Synchronizer for OFDM-Based UWB System

Hsuan Yu Liu; Chen-Yi Lee

doi:10.1109/TCSII.2006.882804

A Low-Complexity Synchronizer for OFDM-Based UWB System

Hsuan Yu Liu, Chen-Yi Lee

Department of Electronics Engineering

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

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 relator. 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.

Original language	English
Pages (from-to)	1269-1273
Number of pages	5
Journal	IEEE Transactions on Circuits and Systems I: Regular Papers
Volume	53
Issue number	11
DOIs	https://doi.org/10.1109/TCSII.2006.882804
State	Published - 1 Jan 2006

Keywords

Data-partition
dynamic-threshold
moving-average-free matched filter (MF)
single auto-correlator

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abstract = "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 relator. 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.",

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