Title :
Improving Receiver Performance of Diffusive Molecular Communication With Enzymes
Author :
Noel, Adam ; Cheung, Karen C. ; Schober, Robert
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of British Columbia, Vancouver, BC, Canada
Abstract :
This paper studies the mitigation of intersymbol interference in a diffusive molecular communication system using enzymes that freely diffuse in the propagation environment. The enzymes form reaction intermediates with information molecules and then degrade them so that they cannot interfere with future transmissions. A lower bound expression on the expected number of molecules measured at the receiver is derived. A simple binary receiver detection scheme is proposed where the number of observed molecules is sampled at the time when the maximum number of molecules is expected. Insight is also provided into the selection of an appropriate bit interval. The expected bit error probability is derived as a function of the current and all previously transmitted bits. Simulation results show the accuracy of the bit error probability expression and the improvement in communication performance by having active enzymes present.
Keywords :
biochemistry; biodiffusion; enzymes; error statistics; molecular biophysics; probability; binary receiver detection scheme; bit error probability expression; communication performance; diffusive molecular communication; enzymes; improving receiver performance; intersymbol interference mitigation; low bound expression; propagation environment; reaction intermediates; Biochemistry; Degradation; Kinetic theory; Molecular communication; Nanobioscience; Receivers; Transmitters; Diffusion; intersymbol interference; molecular communication; nanonetwork;
Journal_Title :
NanoBioscience, IEEE Transactions on
DOI :
10.1109/TNB.2013.2295546