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