Capacity of molecular channels with imperfect particle-intensity modulation and detection
Name
1705.08040.pdf
Description
Submitted version
Size
479 KB
Format
Unknown
Checksum (MD5)
9e675d727098d107ac0809e3bca67368
Author(s)
Farsad, Nariman
Rose, Christopher
Medard, Muriel
Goldsmith, Andrea
Date Issued
June 2017
Publisher
IEEE
Citation
Farsad, Nariman, Rose, Christopher, Medard, Muriel and Goldsmith, Andrea. 2017. "Capacity of molecular channels with imperfect particle-intensity modulation and detection."
Version
Original manuscript
Abstract
© 2017 IEEE. This work introduces the particle-intensity channel (PIC) as a model for molecular communication systems and characterizes the properties of the optimal input distribution and the capacity limits for this system. In the PIC, the transmitter encodes information, in symbols of a given duration, based on the number of particles released, and the receiver detects and decodes the message based on the number of particles detected during the symbol interval. In this channel, the transmitter may be unable to control precisely the number of particles released, and the receiver may not detect all the particles that arrive. We demonstrate that the optimal input distribution for this channel always has mass points at zero and the maximum number of particles that can be released. We then consider diffusive particle transport, derive the capacity expression when the input distribution is binary, and show conditions under which the binary input is capacity-achieving. In particular, we demonstrate that when the transmitter cannot generate particles at a high rate, the optimal input distribution is binary.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1109/isit.2017.8006973
