论文标题
用于移动分子通信的距离估计和功率控制的扩展Kalman滤波器
An Extended Kalman Filter for Distance Estimation and Power Control in Mobile Molecular Communication
论文作者
论文摘要
在本文中，我们考虑了一种移动分子通信（MC）系统，该系统由两种移动纳米机器组成，即发射器和一个接收器，该系统是由正面漂移速度和布朗尼运动以现实的血管型流动状态所推动的。考虑到纳米机器的非线性运动，采用了扩展的卡尔曼滤波器来估计与发射器的距离。此外，基于预测的距离，为了将位1的接收分子数保持在稳定的水平上，我们根据发射器和接收器之间的距离以及通道中与先前传播的通道中的残留分子对透射分子的数量进行功率控制。最后，通过最小化误差概率来获得最佳检测阈值。可以验证的是，固定的最佳检测阈值可能对移动MC中的功率控制方案有效。通过模拟结果验证了我们方案的位错误率（BER）性能。
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.
