Molecular Communication in Fluid Media: Bounds on the Capacity of the Additive Inverse Gaussian Noise Channel
Molecular Communication in Fluid Media: Bounds on the Capacity of the Additive Inverse Gaussian Noise Channel
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发表时间：
2013
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通讯作者：
Huilan Chang
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作者：
Huilan Chang
流体介质中的分子通讯：加性逆高斯噪声信道容量的界限学生：张慧婷导师：Stefan M.交通大学通信工程研究所在这篇论文中，一个非常新的和新的信道模型进行了研究，该模型描述了基于化学分子在具有恒定漂移的液体介质中的交换的通信。它们在一维轴的两端从发射器传播到接收器。这种通信的典型应用是血管内的纳米器件彼此通信。在这种情况下，我们不再通过电磁波传输信号，而是将信息放在分子的发射时间上。一旦分子在流体介质中发射，它将受到布朗运动的影响，这导致分子到达接收器的时间不确定。我们用逆高斯分布来描述这种噪声。在这里，我们只专注于加性噪声信道来描述基本的信道容量行为。这个新的模型进行了研究，并提出了新的分析上限和下限的能力。边界是渐近紧的，即，当平均延迟约束放松到无穷大或液体介质的漂移速度趋于无穷大时，精确地导出了相应的渐近容量。
Molecular Communication in Fluid Media: Bounds on the Capacity of the Additive Inverse Gaussian Noise Channel Student: Chang Hui-Ting Advisor: Prof. Stefan M. Moser Institute of Communication Engineering National Chiao Tung University In this thesis a very recent and new channel model is investigated that describes communication based on the exchange of chemical molecules in a liquid medium with constant drift. They travel from the transmitter to the receiver at two ends of a one-dimensional axis. A typical application of such communication are nanodevices inside a blood vessel communicating with each other. In this case, we no longer transmit our signal via electromegnetic waves, but we put our information on the emission time of the molecules. Once a molecule is emitted in the fluid medium, it will be affected by Brownian motion, which causes uncertainty of the molecule’s arrival time at the receiver. We characterize this noise with an inverse Gaussian distribution. Here we focus solely on an additive noise channel to describe the fundamental channel capacity behavior. This new model is investigated and new analytical upper and lower bounds on the capacity are presented. The bounds are asymptotically tight, i.e., if the averagedelay constraint is loosened to infinity or if the drift velocity of the liquid medium tends to infinity, the corresponding asymptotic capacities are derived precisely.