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Method for determining node decision threshold in bidirectional molecular communication network based on network coding

A technology of molecular communication and network coding, which is applied in the field of determination of node decision threshold, can solve the problems of less research on two-way molecular communication network, and achieve the effects of improving performance, fast convergence, and reducing bit error rate

Active Publication Date: 2021-08-24
ZHEJIANG UNIV OF TECH
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Problems solved by technology

The current research mainly focuses on the one-way molecular communication network, and the research on the two-way molecular communication network is less

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  • Method for determining node decision threshold in bidirectional molecular communication network based on network coding
  • Method for determining node decision threshold in bidirectional molecular communication network based on network coding
  • Method for determining node decision threshold in bidirectional molecular communication network based on network coding

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Embodiment Construction

[0088] The present invention will be further described below in conjunction with the accompanying drawings.

[0089] refer to Figure 1 to Figure 9 , a network coding-based node decision threshold method in a two-way molecular communication network, comprising the following steps:

[0090] In the first step, based on the network coding strategy, calculate the source node S 1 and source node S 2 The number of molecules received in the 2nth time slot;

[0091] In the second step, at the relay node R and the source node S 1 and S 2 The hypothesis detection channel model and the optimal threshold detection rule are established respectively, and the average BEP of the nth bit transmitted by the two-way molecular communication network based on network coding is obtained;

[0092] The third step is to use the PSO algorithm to minimize the mathematical expression of the average BEP under SNM and DNM, so as to determine the decision threshold of each node of the two-way molecular ...

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Abstract

A method for determining a node decision threshold in a bidirectional molecular communication network based on network coding comprises the following steps: step 1, calculating the number of molecules received by a source node S1 and a source node S2 in a 2nth time slot based on a network coding strategy; step 2, respectively establishing a hypothesis test model and an optimal threshold detection rule at the relay node R and the source nodes S1 and S2 to obtain an average bit error rate of the nth bit transmitted by the bidirectional molecular communication network based on network coding; and step 3, minimizing the average bit error rate under the SNM and DNM conditions by using a PSO algorithm so as to determine the decision threshold of each node of the bidirectional molecular communication network under the SNM and DNM conditions. The invention mainly develops a node decision threshold method which can be used for determining a bidirectional molecular communication network with a low bit error rate.

Description

technical field [0001] The invention relates to biotechnology, nanometer technology and communication technology, and relates to a method for determining a node decision threshold in a two-way molecular communication network based on network coding. Background technique [0002] With the rapid development of nanotechnology in recent years, new molecular communication networks have gradually entered the public's field of vision. Due to their biocompatibility and energy-saving technology, they are considered to be a promising communication mode in the field of nanoscale communication between nanomachines. One of the most important applications of molecular communication networks in the field of biomedicine is drug delivery in the human body, which lays the foundation for the networking of bionanomaterials. However, the communication distance of a single nanomachine is limited. In order to improve the communication range, the cooperative transmission of one or more relay nanoma...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/801H04L12/24G06N3/00
CPCH04L47/29H04L41/145G06N3/006
Inventor 程珍涂宇淳闫俊雷艳静池凯凯
Owner ZHEJIANG UNIV OF TECH
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