Research On Channel Switching And Aggregation Technology In Molecular Communication

In recent years,with the rapid development of Nano-technology and Synthetic Biology(SB),the realization of biologically inspired nanomachines and nanonetworks has become possible.The communication system composed of nanocomputers has potential application value in many fields,such as medical,military,environmental protection,industry and so on.However,applying traditional electromagnetic communication technology to nano-networks will be affected by energy consumption,interference,and nanomachine process factors,and cannot achieve ideal performance indicators.At this time,molecular communication(MC)technology using biochemical molecules as information carriers provides a solution for communication between nanomachines.Channel switching(CS)technology in molecular communication is an important supporting technology for information transmission and routing exchange in cellular networks.Channel aggregation(CA)technology can realize information regeneration and relay in cellular networks.They are all Current research hot issues.Under this background,this paper has made research on the related issues of channel switching and aggregation.In layman's terms,the channel switching technology is a channel with separate channel selection,and the channel aggregation technology is a channel combining channel.In this paper,based on the calcium ion signal,the switching mechanism of channel splitting and the aggregation mechanism of channel combining are proposed.Mainly through external signals to regulate the opening and closing of cell Gap Junction(GJ),in order to control the switching of information channels between cells.Furthermore,the calcium signal transmitted by the cell pathway will attenuate as the distance increases.The aggregation of the two calcium signal pathways can enhance the signal of the original pathway.The main research contents and contributions of this article are as follows:1.The transmission regular of calcium signals in the cell network and the physiological characteristics of GJ are studied.On this basis,the channel switching and aggregation in the cell network are proposed.2.For channel shunting,a mixed ion channel switching mechanism of calcium ion and hydrogen ion is proposed.In-depth study of the physiological characteristics of the gap junction,for the first time,the gap connection sensitivity difference is used to design channel switching.The minimum channel switching model is improved,and the universality of the minimum switching model is solved.A new channel switching method is proposed,and a new channel switching scheme is proposed for the minimum switching model.The proposed method was verified by simulation design.3.For the channel combination,a calcium signal aggregation mechanism is proposed,which fills the research gap junction in this field.The calcium signal oscillation equation was studied,and calcium signals were used for the first time to enhance aggregation of design signals.The channel aggregation model is established,and the problem of signal transmission distance in the cell network is solved.The cost loss function of channel aggregation is proposed,and a channel aggregation method is proposed.The proposed method was verified by simulation design.The kinetic equation of calcium oscillation transmission and the physiological characteristics of the gap connection were simulated and verified.Simulation results show that under the control of mixed ions,four switching states under the minimum switching model can be achieved,and the fusion of calcium channels can enhance the signal of weak source.