Simple Design of Detector in the Presence of Frequency Offset for IEEE 802.15.4 LR-WPANs

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A simple detector for orthogonal modulation that is robust to large frequency offsets is proposed. The complexity of the detector is significantly reduced by implementing the correlator using multiplexers instead of complex floating-point multiplications. The performance of this design is comparable to the optimal value obtained by double correlation in offset quadrature phase-shift keying (O-QPSK) and nearly reaches that of noncoherent maximum likelihood (NCOHML) detection with 10-ppm frequency offset in the additive white Gaussian noise (AWGN) channel. Therefore, the proposed design can be used in low-cost and low-power IEEE 802.15.4 low-rate wireless personal area network (LR-WPAN) applications.
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Issue Date
2009-04
Language
English
Article Type
Article
Keywords

RECEIVER; RADIO

Citation

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, v.56, pp.330 - 334

ISSN
1549-7747
DOI
10.1109/TCSII.2009.2015384
URI
http://hdl.handle.net/10203/96902
Appears in Collection
EE-Journal Papers(저널논문)
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