We consider an inhomogeneous diffusion channel (IDC) for molecular communication, where the diffusivities vary in space. We first study the statistical properties of molecular noise. These properties can be fully characterized by two IDC parameters related to a space-dependent diffusion coefficient and a constant drift velocity. We then characterize a noise power for the IDC by introducing the concept of geometric noise power since the molecular noise can be a heavy-tailed distribution. Finally, we derive the bit error rate of molecular communication with timing modulation in terms of two IDC parameters.
|Number of pages||5|
|Journal||IEEE Wireless Communications Letters|
|Publication status||Published - 2022 Sept 1|
Bibliographical noteFunding Information:
This work was supported in part by the Basic Science Research Program through the NRF of Korea funded by the MSIT under Grant NRF-2021R1A2C1008913 and Grant NRF-2020R1A2C4001941.
© 2012 IEEE.
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Electrical and Electronic Engineering