移动分子通信中用于距离估计和功率控制的扩展卡尔曼滤波器
An Extended Kalman Filter for Distance Estimation and Power Control in Mobile Molecular Communication
摘要：
在本文中，我们考虑一个移动分子通信（MC）系统，由两个移动纳米机器，发射器和接收器，推动了一个积极的漂移速度和布朗运动在一个现实的血管型流动制度。考虑到纳米机器的非线性运动，采用扩展的卡尔曼滤波器来估计与发射器的距离。此外，根据预测的距离，为了将比特1的接收分子数量保持在稳定的水平，我们根据发射机和接收机之间的距离以及信道中的残留分子对传输分子数量进行功率控制。从以前的传输。最后，通过最小化错误概率得到最优检测门限。它被验证，一个固定的最佳检测阈值可以是有效的移动MC的功率控制方案。通过仿真结果验证了该方案的误出错率性能。
英文摘要：
In this paper, we consider a mobile molecular communication (MC) system consisting of two mobile nanomachines, a transmitter and a receiver, propelled by a positive drift velocity and Brownian motion in a realistic blood-vessel-type flow regime. Considering the nonlinear movement of the nanomachines, an extended Kalman filter is employed to estimate the distance from the transmitter. Furthermore, based on the predicted distance, to keep the number of received molecules for bit 1 at a stable level, we employ power control on the number of transmitted molecules based on the distance between the transmitter and the receiver and the residual molecules in the channel from the previous transmission. Finally, the optimal detection threshold is obtained by minimizing the error probability. It is verified that a fixed optimal detection threshold can be effective for the power control scheme in the mobile MC. The bit error rate (BER) performance of our scheme is verified via simulation results.
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