The molecules propagation via the molecular communication channel is governed by Fick’s lawthat describes movement of molecules based on the difference between concentration levels at thetransmitter and at the receiver. If the receiver does not absorb all molecules sent, then the moleculesstay in the channel influencing future transmission. This leads to accumulation of molecules meaningthe channel has memory. The paper deals with developing the detection method for such a cumulativechannel. By mapping the received signals and forming a trellis plot we were able to observe thereceived signal changes and design a detection method based on the trellis. In the paper, we simulate amolecular transmission, including absorption, inter symbol interference and noise, and their respectiveeffects on the transmitted data.
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