MAP detector performance analysis in diffusion-based relaying molecular communications

Jamshidi, Ali; Keshavarz‐Haddad, Alireza; Ardeshiri, Ghazaleh

doi:10.1016/j.nancom.2018.12.003

Cited by 10 publications

(2 citation statements)

References 14 publications

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“…The received molecules can be detected by the nano-machine R using the likelihood detection method as shown in Fig. 2, and in the equation below [31]:…”

Section: A Cooperative Molecular Communication Relaying Scheme Based ...mentioning

confidence: 99%

Optimization of Cooperative Relaying Molecular Communications for Nanomedical Applications

Attia,

Khalaf,

El-Samie

et al. 2024

CMES

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Recently, nano-systems based on molecular communications via diffusion (MCvD) have been implemented in a variety of nanomedical applications, most notably in targeted drug delivery system (TDDS) scenarios. Furthermore, because the MCvD is unreliable and there exists molecular noise and inter symbol interference (ISI), cooperative nano-relays can acquire the reliability for drug delivery to targeted diseased cells, especially if the separation distance between the nano transmitter and nano receiver is increased. In this work, we propose an approach for optimizing the performance of the nano system using cooperative molecular communications with a nano relay scheme, while accounting for blood flow effects in terms of drift velocity. The fractions of the molecular drug that should be allocated to the nano transmitter and nano relay positioning are computed using a collaborative optimization problem solved by the Modified Central Force Optimization (MCFO) algorithm. Unlike the previous work, the probability of bit error is expressed in a closed-form expression. It is used as an objective function to determine the optimal velocity of the drug molecules and the detection threshold at the nano receiver. The simulation results show that the probability of bit error can be dramatically reduced by optimizing the drift velocity, detection threshold, location of the nano-relay in the proposed nano system, and molecular drug budget.

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“…The received molecules can be detected by the nano-machine R using the likelihood detection method as shown in Fig. 2, and in the equation below [31]:…”

Section: A Cooperative Molecular Communication Relaying Scheme Based ...mentioning

confidence: 99%

Optimization of Cooperative Relaying Molecular Communications for Nanomedical Applications

Attia,

Khalaf,

El-Samie

et al. 2024

CMES

View full text Add to dashboard Cite

show abstract

“…Moreover, nanotechnology has recommended that nanoscale communication can be performed by molecular communica-tions technology. Molecular communication (MC) system utilizes molecules (bio-chemical signals over multiple scales), to encode, transmit and receive molecular information among a group of macro, micro, and nanodevices [2]. Thereby, it is bio-inspired communication that enables macro, micro, and nanodevices to interconnect.…”

Section: Introductionmentioning

confidence: 99%

Embedded Coded Relay System for Molecular Communications

Attia¹,

Khalaf²,

El‐Samie³

et al. 2022

Computers, Materials &Amp; Continua

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With the emergence of the COVID-19 pandemic, the World Health Organization (WHO) has urged scientists and industrialists to explore modern information and communication technology (ICT) as a means to reduce or even eliminate it. The World Health Organization recently reported that the virus may infect the organism through any organ in the living body, such as the respiratory, the immunity, the nervous, the digestive, or the cardiovascular system. Targeting the abovementioned goal, we envision an implanted nanosystem embedded in the intra living-body network. The main function of the nanosystem is either to perform diagnosis and mitigation of infectious diseases or to implement a targeted drug delivery system (i.e., delivery of the therapeutic drug to the diseased tissue or targeted cell). The communication among the nanomachines is accomplished via communication-based molecular diffusion. The control/interconnection of the nanosystem is accomplished through the utilization of Internet of bio-nano things (IoBNT). The proposed nanosystem is designed to employ a coded relay nanomachine disciplined by the decode and forward (DF) principle to ensure reliable drug delivery to the targeted cell. Notably, both the sensitivity of the drug dose and the phenomenon of drug molecules loss before delivery to the target cell site in long-distance due to the molecules diffusion process are taken into account. In this paper, a coded relay NM with conventional coding techniques such as RS and Turbo codes is selected to achieve minimum bit error rate (BER) performance and high signal-to-noise ratio (SNR), while the detection process is based on maximum likelihood (ML) probability and minimum error probability (MEP). The performance analysis of the proposed scheme is evaluated in terms of channel capacity and bit error rate by varying system parameters such as relay position, number of released molecules, relay and receiver size. Analysis results are validated through simulation and demonstrate that the proposed scheme can significantly improve delivery performance of the desirable drugs in the molecular communication system.

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Embedded Nano Relay for Intra-Body Network-Based Molecular Communications

El-atty

Bidar

El‐Rabaie

2022

Wireless Pers Commun

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We propose an embedded synthetic relay transport protein (RTP) approach for communication between the external environment (blood vessels) and internal targeted nanonetworks (cells/tissues) within the intra-body network. In fact, we designed a bioengineered relay protein-based facilitated diffusing to be an alternative protein in the case of biological transport proteins (such as protein channels, e.g. Pores) failing. The proposed approach is inspired by the traditional wireless communication system-based relay concept, in which embedded nanodevices known as donor, relay, and acceptor bionanomachine construct a molecular communication system. Fluorescence resonance energy transfer nanocommunications are used to connect the embedded bionanomachines, and the therapeutic drug is transferred in the form of exciton. The performance analysis of the proposed approach is evaluated in terms of channel capacity of RTP as function of intrinsic environmental parameters and the location of the relay between the donor, and acceptor bionanomachines. The numerical results show that the proposed approach improves channel capacity by 16.7% over previous work.

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MAP detector performance analysis in diffusion-based relaying molecular communications

Cited by 10 publications

References 14 publications

Optimization of Cooperative Relaying Molecular Communications for Nanomedical Applications

Optimization of Cooperative Relaying Molecular Communications for Nanomedical Applications

Embedded Coded Relay System for Molecular Communications

Embedded Nano Relay for Intra-Body Network-Based Molecular Communications

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