Fig. 6: Bit interval optimisation.
From: Real-time signal processing via chemical reactions for a microfluidic molecular communication system
a BER measured over the same random 100-bit sequence (53 bit-0 and 47 bit-1) for 3 different duty cycle α. For α = 1, P was not injected into the platform. The speed factor was set to N = 8 and LCH = 25 m. b Distortion regime (D) caused by the injection of P during a bit emission on the shape of the following bit if the bit interval is too short (Tb < Te + αTb). c Reception of two bit-1 emitted with different Tb and α, while αTb was fixed to 30 min. The measured widths Tw,2 of the output signals for the 2nd bit are shown on the graph. The horizontal dotted line represents the detection threshold used for pulse identification, and the vertical dashed line represents the observed time below which the second Y is consumed by the first P. d Evolution of Tw,2 with Tb, measured in the same conditions as for (c). The solid orange line highlights the minimum \({T}_{\rm b}^{\star }\) observed experimentally and separates Tb in the ND and D regimes described in (b). The colored data points correspond to the measurement extracted from the curves shown in (c). For all experiments, the setup and parameters used were the ones of Fig. 5b.
