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Concentration-based adaptive decision threshold adjustment method in molecular communication

A technology of self-adaptive adjustment and molecular communication, which is applied to the shaping network, baseband system, and baseband system components in the transmitter/receiver to reduce the bit error rate, improve reliability, and avoid misjudgment.

Active Publication Date: 2019-04-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0003] Aiming at the problem of inter-symbol interference in molecular communication, the present invention proposes an adaptive adjustment method for the determination threshold based on concentration in molecular communication, by adaptively adjusting the judgment threshold at the receiving end; effectively overcoming the problem of molecular communication diffusion channel The problem of signal misjudgment caused by intersymbol interference, thereby reducing the bit error rate and improving the reliability of molecular communication

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  • Concentration-based adaptive decision threshold adjustment method in molecular communication
  • Concentration-based adaptive decision threshold adjustment method in molecular communication
  • Concentration-based adaptive decision threshold adjustment method in molecular communication

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Embodiment Construction

[0017] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.

[0018] First, the meanings of the parameters involved in this embodiment are explained:

[0019] i: the number of times the signal is received (or the number of time slots);

[0020] n0: the number of received signal "0";

[0021] n1: the number of received signal "1";

[0022] N(i): The discrimination threshold of the i-th received signal;

[0023] N rx (i): The concentration value of the i-th received signal;

[0024] The concentration value when the signal "1" is received for the ith time;

[0025] The concentration value when the signal "0" is received for the ith time;

[0026] A(i): The difference between N(i) and the average concentration value of the signal "0" at the i-th reception;

[0027] B(i): the difference between the av...

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Abstract

The invention discloses a concentration-based adaptive decision threshold adjustment method in molecular communication, which is suitable for deciding receiving signals in diffusion channel-based molecular communication and aims at solving the problem of intersymbol interference in molecular communication. The current molecular concentration of received signals at each time is counted in real time, the average value is calculated, the value is then compared with an already-set decision threshold value, and if the difference is over large, the decision threshold value is dynamically adjusted, and thus, misjudgment can be avoided.

Description

technical field [0001] The invention belongs to the field of molecular communication, and in particular relates to a method for dynamically adjusting a discrimination threshold by a receiving nanomachine according to the change of the concentration of the receiving molecule during the molecular communication process. Background technique [0002] In diffusion-based molecular communication, the reception of a signal is usually determined by the concentration of the received molecule. The most commonly used method is: the receiving nanocomputer compares the molecular concentration value received each time with the set discrimination threshold. If the molecular concentration value received this time is higher than the discrimination threshold value, it is judged as the received molecular concentration value. The signal is "1", otherwise, the received signal is judged as "0". This discrimination method completely adopts the method of judging the threshold value of the judgment ...

Claims

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Application Information

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IPC IPC(8): H04B13/00H04L1/20H04L25/03
CPCH04B13/00H04L1/203H04L25/03006
Inventor 刘强何鹏杨鲲翟浩洋杨鲤婷
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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