A Low-Complexity Frequency Offset Insensitive Detection for 2.45 GHz LR-WPAN

Jung-Su HAN  Hyung-Jin CHOI  

IEICE TRANSACTIONS on Communications   Vol.E91-B   No.7   pp.2205-2213
Publication Date: 2008/07/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e91-b.7.2205
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Transmission Systems and Transmission Equipment for Communications
IEEE 802.15.4,  LR-WPAN,  2.45 GHz,  frequency offset,  detection,  

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In this paper, we propose a low-complexity frequency offset insensitive detection method for the 2.45 GHz LR-WPAN demodulator. In IEEE 802.15.4 LR-WPAN (Low-Rate Wireless Personal Area Network) specification, the frequency offset as highest 80 ppm in the 2.45 GHz band is recommended for low-complexity, low-cost, and low-power implementation. The proposed detection method is verified such that the performance is within 2 dB of the optimal coherent detection with low complexity, which is less than half in comparison with conventional detection methods.