On Error Rate Reduction in Sub-Diffusion-Based Mobile Molecular Communication

This work considers the sub-diffusive dynamics of information-carrying molecules (IM) within a molecular communication (MC) channel, focusing on the implementation of mobility at both the transmitter (TX) and receiver (RX) system components. To capture the essence of these complex movements, we derive the closed-form expressions for the absorption probability (AP), the first-passage-time density (FPTD), and the Cumulative Density Function (CDF). We also incorporate the Reed-Solomon (RS) coding technique to enhance communication performance. Through this integration, we analyze communication metrics such as mutual information and channel capacity. Moreover, we compare the bit error probability (BEP) with and without RS coding. The results provide a comprehensive view of the performance enhancements achieved by coding techniques in MC systems, leading to a more robust and efficient MC system.