Secrecy Capacity of Diffusion-Based Molecular Communication Systems
Secrecy Capacity of Diffusion-Based Molecular Communication Systems
复制标题
基于扩散的分子通信系统的保密能力
DOI：
10.1007/978-3-030-29897-5_9
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
M. Pierobon
中科院分区：
文献类型：
--
作者：
L. Mucchi;A. Martinelli;S. Caputo;S. Jayousi;M. Pierobon
分子通信是一种新的通信模式，与无线电或光通信相反，信息流是基于分子交换和化学相互作用。由于高生物相容性和纳米级的可行性，MC是一种很有前途的通信技术，用于健康应用，从疾病检测到药物体内输送。在过去的十年里，人们在研究信息论应用于生化反应的基础上，对MC给予了很大的关注，而对安全性的考虑却非常有限。给出了基于扩散的MC系统的保密容量的封闭表达式。这项研究对于理解MC范式的安全鲁棒性至关重要。通过信息理论的物理层安全工具，数值结果研究的平均热力学功率，窃听者的距离，传输带宽和接收器半径的保密容量的依赖关系。还提出了一个保密地图，它显示了合法发射机周围的安全和不安全的区域。
Molecular communication (MC) is a new communication paradigm where, opposite to radio or optical communication, the information flow is based on the molecules exchange and chemical interactions. Thanks to the high biological compatibility and nano-scale feasibility, MC is a promising communication technology for health applications, from disease detection to drug in-body delivery. Much attention has been paid to MC in the last decade in investigating the fundamentals of information theory applied to biochemical reactions, while considerations on security have been very limited. A closed-form expression of the secrecy capacity of a diffusion-based MC system is provided. This study is of primary importance to understand the security robustness of the MC paradigm. Through information-theoretical physical-layer security tools, numerical results are presented to study the dependence of the secrecy capacity on the average thermodynamic power, the eavesdropper’s distance, the transmit bandwidth, and the receiver radius. A secrecy map is also presented, which shows the secure and unsecure areas around the legitimate transmitter.