论文标题
双向分子继电器的决策反馈检测与直接链接
Decision-Feedback Detection for Bidirectional Molecular Relaying with Direct Links
论文作者
论文摘要
在本文中，我们考虑了两个基于扩散的分子收发器（生物节点）之间的双向继电器。与现有文献相反，我们结合了节点之间直接扩散链接的效果，并利用它来提高性能。假设在继电器上进行网络编码类型操作，我们根据最大样本原理设计了一种检测策略，该原理结合了从继电器接收到的信号以及从直接链接中收到的信号。同时，由于基于扩散的分子通信通道的特征是高符号间干扰（ISI），因此我们利用决策反馈机制来减轻其效果。仿真结果表明，合并直接链接的拟议设置可以显着改善错误性能，而不是不利用直接链接和/或不尝试减轻ISI效果的常规检测方案。
In this paper, we consider bidirectional relaying between two diffusion-based molecular transceivers (bio-nodes). As opposed to existing literature, we incorporate the effect of direct diffusion links between the nodes and leverage it to improve performance. Assuming network coding type operation at the relay, we devise a detection strategy, based on the maximum-likelihood principle, that combines the signal received from the relay and that received from the direct link. At the same time, since a diffusion-based molecular communication channel is characterized by high inter-symbol interference (ISI), we utilize a decision feedback mechanism to mitigate its effect. Simulation results indicate that the proposed setup incorporating the direct link can achieve notable improvement in error performance over conventional detection schemes that do not exploit the direct link and/or do not attempt to mitigate the effect of ISI.
