In this paper, a new channel model is presented for molecular communications (MC), where a point source emitted by the transmitter undergoes three phases, with effect of convection dominating in the first two phases, whereas diffusion prevailing in the final phase. The point source obtains its initial velocity and passes through the nozzle of the nanomachine transmitter in the first phase, followed by a deceleration process in the second phase. The free diffusion model is considered in the third phase. Based on this channel model, the energy transfer issue for two-way MC system is also taken into account, in which one of the transceivers is assumed to have abundant information molecules from its ambient environment, whereas the other one obtains the information molecules by implementing the simultaneous molecular information and energy transfer (SMIET). Finally, analytical bit error rate (BER) expressions are validated by computer simulations. Our results suggest that the symbol duration and the SMIET order significantly influence the BER performance in our two-way MC system.
Bibliographical noteFunding Information:
Manuscript received September 30, 2018; revised December 8, 2018; accepted January 18, 2019. Date of publication February 4, 2019; date of current version May 2, 2019. The work of Y. Huang, M. Wen, and F. Ji was supported in part by the National Natural Science Foundation of China under Grant 61871190, in part by the Natural Science Foundation of Guangdong Province under Grants 2018B030306005 and 2016A030308006, and in part by the Pearl River Nova Program of Guangzhou under Grant 201806010171. The work of C. Lee and C.-B. Chae was supported by the Basic Science Research Program through the National Research Foundation of Korea funded by the Ministry of Education (NRF-2017R1A1A1A05001439). Paper no. TII-18-2584. (Corresponding author: Miaowen Wen.) Y. Huang, M. Wen, and F. Ji are with the School of Electronics and Information Engineering, South China University of Technology, Guangzhou 510641, China (e-mail:, firstname.lastname@example.org; eemwwen@ scut.edu.cn; email@example.com).
All Science Journal Classification (ASJC) codes
- Control and Systems Engineering
- Information Systems
- Computer Science Applications
- Electrical and Electronic Engineering