Channel capacity optimization method for molecular communication model based on diffusion

A technology of molecular communication, optimization method, applied in the fields of communication, biotechnology, nanotechnology

Active Publication Date: 2017-07-21
ZHEJIANG UNIV OF TECH
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Therefore, the research on the diffusion-based molecular communication model also faces many challenges, one of which is ho

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  • Channel capacity optimization method for molecular communication model based on diffusion
  • Channel capacity optimization method for molecular communication model based on diffusion
  • Channel capacity optimization method for molecular communication model based on diffusion

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[0079] The present invention will be further described below in conjunction with the accompanying drawings.

[0080] refer to Figure 1 to Figure 7 , a channel capacity optimization method based on a diffusion-based molecular communication model, comprising the following steps:

[0081] In the first step, the Poisson distribution is used to approximate the binomial distribution to obtain the number of molecules received by the RN in the current time slot.

[0082] After the sending nanomachine releases the molecule, the molecule moves in the Brownian form in the medium. The probability density distribution function f(t) of the time t required for a molecule to travel from the sending nanomachine to the receiving nanomachine at a distance d is:

[0083]

[0084] where d is the distance between the sending nanomachine and the receiving nanomachine, and D is the diffusion coefficient of the biological environment. The cumulative distribution function corresponding to the pro...

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Abstract

A channel capacity optimization method for a molecular communication model based on diffusion comprises the following steps: step 1, obtaining the number of molecules received at the current time slot RN by approximating the binomial distribution through the Poisson distribution; step 2, establishing a hypothetical detection channel model of the molecular communication model based on diffusion; step 3, acquiring a mathematical expression of an optimal decision threshold by using the Skellam distribution, and further obtaining the optimal decision threshold theta; and step 4, obtaining an optimal channel capacity value based on the optimal decision threshold theta. According to the channel capacity optimization method for the molecular communication model based on diffusion provided by the invention, the channel capacity can be effectively increased.

Description

technical field [0001] The invention relates to biotechnology, nanotechnology and communication technology, and relates to a channel capacity optimization method based on a diffusion molecular communication model. Background technique [0002] Molecular communication is a new type of communication between nano-machines. It is a communication technology that uses biochemical molecules as information carriers and communicates with each other through the diffusion of molecules in the biological environment. It is used in nano-machines to form a distributed nano-network. Molecular communication belongs to the frontier fields of biotechnology, nanotechnology, and communication technology. Molecular communication technology has broad application prospects, mainly including four major fields: biomedicine, industry, environment, and military. [0003] In the diffusion-based molecular communication model, the transmitter nanomachine TN (Transmitter Nanomachine) and the receiver nano...

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Application Information

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IPC IPC(8): H04B17/391H04W24/02H04W24/06
CPCH04B17/3912H04W24/02H04W24/06
Inventor 程珍章益铭林飞赵慧婷
Owner ZHEJIANG UNIV OF TECH
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