A delay-combining reception scheme for DCSK communications system over a multipath fading channel

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Abstract
A delay-combining reception scheme for DCSK communications system over a multipath fading channel is proposed. BER performance of the scheme is analyzed theoretically and simulated. The results indicate that in comparison with the original DCSK communication system, the one with delay-combining reception has better BER performance. When the delays of reception paths are different, the BER performance are almost the same. When equal gain combining is adopted for the reception paths, the scheme achieves the best BER performance. The theoretical upper bound of the BER performance decreases with the increase of the number of reception paths.

Keywords:
DCSK communication system /

multipath fading /

delay-combining /

BER performance
Authors and contacts
Chen Hong-Bin,

Feng Jiu-Chao,

Hu Zhi-Hui

1.
华南理工大学电子与信息学院,广州 510641
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