Staff publications (SATM)

Permanent URI for this collection

https://dspace.lib.cranfield.ac.uk/handle/1826/8738

Browse

Browsing Staff publications (SATM) by Author "Abbaszadeh, Mahmoud"

Now showing 1 - 4 of 4
  • Thumbnail Image
    ItemOpen Access
    Kolmogorov turbulence and information dissipation in molecular communication
    (IEEE, 2021-02-19) Abbaszadeh, Mahmoud; Huang, Yu; Thomas, Peter J.; Wen, Miaowen; Ji, Fei; Guo, Weisi
    Waterborne chemical plumes are studied as a paradigm for representing a means for molecular communication in a macro-scale system. Results from the theory of fluid turbulence are applied and interpreted in the context of molecular communication to characterize an information cascade, the information dissipation rate and the critical length scale below which information modulated onto the plume can no longer be decoded. The results show that the information dissipation decreases with increasing Reynolds number and that there exists a theoretical potential for encoding smaller information structures at higher Reynolds numbers.
  • Thumbnail Image
    ItemOpen Access
    Molecular physical layer for 6G in wave-denied environments
    (IEEE, 2021-06-03) Guo, Weisi; Abbaszadeh, Mahmoud; Lin, Lin; Charmet, Jerome
    The sixth generation (6G) of wireless systems are likely to operate in environments and scales that wireless services have not penetrated effectively. Many of these environments are not suitable for efficient data bearing wave propagation. Molecular signals have the potential to deliver information by exploiting both new modulation mechanisms via chemical encoding and new multi-scale propagation physics. While the fusion of biophysical models and communication theory has rapidly advanced the molecular communication field, there is a lack of real-world macro-scale applications. Here, we introduce application areas in defense and security, ranging from underwater search and rescue to covert communications; and cyber-physical systems, such as using molecular signals for health monitoring in underground networked systems. These engineering applications not only demand new wireless communication technologies ranging from DNA encoding to molecular graph signal processing, but also demonstrate the potential for molecular communication to contribute in traditional but challenging engineering areas. Together, it is increasingly believed that molecular communication can be a new physical layer for 6G, accessing and extracting data from extreme wave-denied environments.
  • Thumbnail Image
    ItemOpen Access
    Molecular signal tracking and detection methods in fluid dynamic channels
    (IEEE, 2020-07-17) Abbaszadeh, Mahmoud; Atthanayake, Iresha; Thomas, Peter J.; Guo, Weisi
    This method and data paper sets out the macro-scale experimental techniques to acquire fluid dynamic knowledge to inform molecular communication performance and design. Fluid dynamic experiments capture latent features that allow the receiver to detect coherent signal structures and infer transmitted parameters for optimal decoding. This paper reviews two powerful fluid dynamical measurement methodologies that can be applied beneficially in the context of molecular signal tracking and detection techniques. The two methods reviewed are Particle Image Velocimetry (PIV) and Planar Laser-Induced Fluorescence (PLIF). Step-by-step procedures for these techniques are outlined as well as comparative evaluation in terms of performance accuracy and practical complexity is offered. The relevant data is available on IEEE DataPort to help in better understanding of these methods
  • Thumbnail Image
    ItemOpen Access
    Review of physical layer security in molecular internet of nano-things
    (IEEE, 2023-06-14) Qiu, Song; Wei, Zhuangkun; Huang, Yu; Abbaszadeh, Mahmoud; Charmet, Jerome; Li, Bin; Guo, Weisi
    Molecular networking has been identified as a key enabling technology for Internet-of-Nano-Things (IoNT): microscopic devices that can monitor, process information, and take action in a wide range of medical applications. As the research matures into prototypes, the cybersecurity challenges of molecular networking are now being researched on at both the cryptographic and physical layer level. Due to the limited computation capabilities of IoNT devices, physical layer security (PLS) is of particular interest. As PLS leverages on channel physics and physical signal attributes, the fact that molecular signals differ significantly from radio frequency signals and propagation means new signal processing methods and hardware is needed. Here, we review new vectors of attack and new methods of PLS, focusing on 3 areas: (1) information theoretical secrecy bounds for molecular communications, (2) key-less steering and decentralized key-based PLS methods, and (3) new methods of achieving encoding and encryption through bio-molecular compounds. The review will also include prototype demonstrations from our own lab that will inform future research and related standardization efforts.