Performance Analysis of TDCS Based on Adaptive Threshold

DOI

10.2991/icecee-15.2015.176How to use a DOI?

Keywords

adaptive threshold; the probability of detection;the probability of false alarm; anti-jamming

Abstract

The traditional Transform Domain Communication System(TDCS)utilizing the fixed threshold is difficult to adapt to the increasingly complex and variable electromagnetic environment, and the adaptive thresholding methods only concern the probability of detection and ignore the probability of false alarm ,which causes the increase of BER(bit error rate). To tackle with the problems above, a new method of adaptive threshold is proposed. This method combines the probability of detection and the probability of false alarm by setting the weighting factor. The optimal threshold is deduced based on the optimal detection performance and it can also adaptively adjust the threshold value according to the change of channel environment. Theoretical analysis and simulations show that this method can correctly location and eliminate the spectrum of interference. The amplitude spectrum of basic function is generated with almost no interference after interference elimination, which reduces the TDCS’s BER and the system’s anti-jamming performance is improved.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zidong Zhou
AU  - Zili Chen
PY  - 2015/06
DA  - 2015/06
TI  - Performance Analysis of TDCS Based on Adaptive Threshold
BT  - Proceedings of the 2015 International Conference on Electrical, Computer Engineering and Electronics
PB  - Atlantis Press
SP  - 922
EP  - 927
SN  - 2352-538X
UR  - https://doi.org/10.2991/icecee-15.2015.176
DO  - 10.2991/icecee-15.2015.176
ID  - Zhou2015/06
ER  -