Robust directional-diffusive hybrid molecular communication with parity-check erasure coding

摘要

This paper investigates a robustness enhancement protocols for biologically-enabled machines (or bio-nanomachines) to reliably exchange information by means of molecules in the aqueous, intrabody environment. The proposed protocol performs forward error correction (FEC) for directional-diffusive hybrid transports, in which molecules travel through two different transports: directional and diffusive transports. It allows the transmitter bio-nanomachine to encode molecules in a redundant manner with parity-check erasure codes. The receiver bio-nanomachine can recover the information embedded in lost molecules. Simulation results show that the proposed protocol enhances robustness against molecule losses and in turn improves communication performance. They also reveal the impacts of FEC overhead and molecule redundancy on the communication performance.