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Efficient structures of packet/frame synchronization in MB-OFDM UWB

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5 Author(s)
Heon-Uk Lee ; Graduate Sch. of Inf. & Commun., Seoul, South Korea ; Sang-Hun Yoon ; Jong-Wha Chong ; Kyung-kuk Lee
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The paper presents two signal detectors of low hardware complexity in MB-OFDM UWB (multi-band orthogonal frequency division multiplexing ultra wide band) systems. Since MB-OFDM UWB has 4 piconets, which are each composed of different preamble sequences, correlators execute cross-correlation with inputs and each coefficient set; therefore, existing correlators have problems of high hardware complexity. To reduce hardware complexity, we present a structure which is composed of a coefficient bank and a transposed filter. In addition to this, because of the property of preamble sequences, we provide a hierarchical structure which has coefficients of only -1 or 1. The results of simulations show that the proposed structures are superior to existing ones.

Published in:

Intelligent Signal Processing and Communication Systems, 2004. ISPACS 2004. Proceedings of 2004 International Symposium on

Date of Conference:

18-19 Nov. 2004

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