受分子寿命影响的中继最大可达传输速率

发布时间：2018-05-11 12:51

本文选题：分子通信 + 扩散　；参考：《重庆邮电大学学报(自然科学版)》2017年06期

【摘要】：基于扩散的分子通信以分子作为信息载体进行信息的传输,分子在信道中做布朗运动,遵循菲克扩散定律。随着扩散距离的增加,分子浓度急速衰减,造成信道可达传输速率非常低,因此,可以采用中继传输来提高传输性能。鉴于扩散分子通信中继可达传输速率是业界研究的热点与难点,采用配体-受体结合机制,考虑分子寿命及分子到达概率等因素的影响,研究了基于扩散的分子通信中继信道对分子传输可达速率的影响,也探索了基于分子寿命的中继节点位置对中继可达传输速率的影响。仿真结果显示,随着分子寿命的增加,分子在信道中存在的时间增加,使得信道最大传输速率增大。同时,随着分子寿命的增加,中继节点需要靠向接收端,才能使信道最大传输速率达到最大。
[Abstract]:Molecular communication based on diffusion uses molecule as information carrier to transmit information, and molecules do Brownian motion in channel, following Fick's law of diffusion. With the increase of diffusion distance, the molecular concentration decays rapidly, resulting in very low channel reachable transmission rate. Therefore, relay transmission can be used to improve transmission performance. In view of the fact that the diffusion molecular communication relay reachability rate is a hot and difficult point in the industry, the ligand-receptor binding mechanism is adopted, and the effects of molecular lifetime and molecular arrival probability are considered. The influence of diffusion based molecular communication relay channel on molecular transmission reachability rate is studied. The influence of relay node location based on molecular lifetime on relay reachable transmission rate is also explored. The simulation results show that with the increase of molecular lifetime, the time of the molecule in the channel increases and the maximum transmission rate of the channel increases. At the same time, with the increase of molecular lifetime, the relay node needs to rely on the receiver in order to maximize the maximum transmission rate of the channel.
【作者单位】：北京邮电大学信息与通信工程学院;
【基金】：国家重大科技专项(2016ZX03001020-006) 国家自然科学基金(61361166005,61671074) 北京市教育委员会科技发展项目(KZ201511232036) 全国杰出青年专业人才培养计划~~
【分类号】：TN91

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