Pre-coding technique for adaptive threshold detectors in diffusion-based molecular communications

Abstract

Molecular Communication (MC) is a subject in medicine, biology and communication engineering. This new paradigm is introduced to carry messages between nano-machines. Because of their size, one of the primary limitation of these devices is their computation capability. For this reason, the proposed ideas regarding MC should be as low complex as possible. Due to the random propagation of molecules, intersymbol interference becomes a major restriction in MC. The majority of ISI combating techniques in literature are implemented at receiver side. In this contribution, a new pre-coding algorithm is introduced at transmitter side to mitigate the intersymbol interference for adaptive threshold detectors. This algorithm will ensure us that we can utilise these detectors in different situations. Our analytical and numerical results indicate that the proposed scheme will provide a significant performance boost regarding these detectors.