Channel Capacity Analysis for Diffusive Molecular Communication with a Partly Covered Comprehensive Reactive Receiver

Molecular communication (MC) is a technology that utilizes microscopic particles such as molecules to communicate at the microscopic scale in living organisms. The nanomachine receiver as a critical part of MC has been extensively investigated. However, existing analyses of nanomachine receivers rarely consider the effects of various chemical reactions. In the few papers that considered the effect of chemical reaction on the channel, the effect of receptor coverage on the receiver surface was also not considered. To fill this gap, this paper studies the variation of channel capacity with coverage rate when the surface of the nanomachine receiver is partially covered with the receptors. This paper derived numerical results of channel capacity under the scenarios above and carried out the numerical simulations. The simulation results show that the channel capacity increases with the increase of coverage, which can guide the design of high-performance nanomachines.