An increment detection algorithm to mitigate ISI for molecular communication based on drift diffusion

In molecular communication based on drift diffusion (MCD2), the most common demodulation technique is based on a fixed threshold of the received molecule concentration. However, the random delay of molecules due to the channel with memory causes severe inter symbol interference (ISI) among consecutive signals. In this paper, we propose a detection technique for demodulating signals, the increment detection algorithm (IDA) to reduce the impact on bit error rate to improve the reliability of MCD2. And we also analyze the impact on different parameters on the bit error rate(BER). Furthermore, we make a comparison between the traditional demodulation technique and IDA. Results show that our proposed IDA successfully minimizes ISI so that a lower BER is achieved than the common demodulation technique.