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Molecular communication in nanonetworks is an emerging communication paradigm that uses molecules as information carriers. In molecule shift keying (MoSK), where different types of molecules are used for encoding, transmitter and receiver complexities increase as the modulation order increases. We propose a modulation technique called depleted MoSK (D-MoSK) in which, molecules are released if the ...Show More
Molecular communication is an emerging technology for communication between bio-nanomachines in an aqueous environment. In this paper, we examine the effect of a reactive obstacle, which is placed in the diffusive molecular communication channel, on the expected number of the received molecules at the receiver. We develop a particle-based simulator that can predict the number of the received molec...Show More
In this paper, a diffusion-based molecular communication channel is modeled in presence of a probabilistic absorber. The probabilistic absorber is an absorber which absorbs molecules upon collision with probability q. With random walk analysis, the discrete probability function of particle location in the presence of a probabilistic absorber can be found. Then, a continuous probability function is...Show More
In molecular communication, molecules are used to transmit information from a nanotransmitter to a nanoreceiver. In many molecular communication applications, the primary aim is to send a single pulse to trigger a response at the receiver. As such, the transmitter can emit a “puff” of information molecules that will freely diffuse in a fluidic environment. In free-diffusion-based communication, th...Show More
In this paper, the effects of the variations in human body temperature on molecular communication systems that are diffusion-based are presented. In particular, we address this concern with respect to two functions, the molecular concentration at some displacement from the transmitter, and the information theoretic capacity of the system. Numerical results are provided to accentuate the temperatur...Show More
For Workshop on Biological and Bio-Inspired Information Theory. Future applications may require communication mechanisms for nanomachines to coordinate with other nano-machines. Nanomachines are artificial or biological macromolecules that perform simple computing, sensing, or actuation. A molecular communication system is one method for communication among nanomachines: a nanomachine(s) releases ...Show More
Molecular communication is a new paradigm for nanomachines to exchange information, by utilizing biological mechanism and/or components to transfer information (e.g., molecular diffusion, neuronal networks, molecular motors). One possible approach for molecular communication is through the use of bacteria, which can act as carriers for DNA-based information, i.e., plasmids. This paper analyzes mul...Show More
We investigate the problem of estimation of a signal-to-noise ratio (SNR) measure for diffusion-based molecular communication (DMC) systems. Considering molecular concentration-encoded signal with residual noise, we present the SNR estimation using maximum likelihood principle with sampled observations. Moreover, we derive the Cramer–Rao lower bound and assess the performance of our proposed estim...Show More
CMOS/molecular hybrid (CMOL) based memory cells, offer high density, programmability and easy configuration, along with its long period data storage capabilities based on the nanodevice properties. Simulation results show that the exiting architecture needs to be modified to make it operational using the current nanodevice specifications, including ON and OFF voltages. A transmission gate based CM...Show More
Embedding nanosensors in the environment would add a new dimension to the Internet of Things, but realizing the IoNT vision will require developing new communication paradigms and overcoming various technical obstacles.Show More
Molecular communication via diffusion (MCvD) is inherently an energy efficient transportation paradigm, which requires no external energy during molecule propagation. Inspired by the fact that the emitted molecules have a finite probability to reach the receiver, this letter introduces an energy efficient scheme for the information molecule synthesis process of MCvD via a simultaneous molecular in...Show More
Molecular communication in nanonetworks is an emerging communication paradigm that uses molecules as information carriers. Achieving a secure information exchange is one of the practical challenges that need to be considered to address the potential of molecular communications in nanonetworks. In this article, we have introduced secure channel into molecular communications to prevent eavesdropping...Show More
Molecular communication is a novel approach for conveying information at the nanoor microscale. The modulation and demodulation schemes for fixed transmitter and receiver nanomachine have been studied in previous literatures. However, it is a big challenge to perform the demodulation when the transmitter/receiver is mobile. The bit symbol will not align due to the movement of the transmitter/recei...Show More
Molecular communication is a very promising research field. It has a broad range of prospective potential applications in biomedical engineering, material manufacturing, etc. Getting the knowledge of the diffusive molecular channel is important for the design and analysis of the molecular communication system. This paper investigates the channel parameter estimation based on a typical inverse Gaus...Show More
Molecular communication is a promising paradigm to communicate at nanoscale and it is inspired by nature. The molecules can be sent into diffusion channel by different emission scheme and received by ligand-based receptors. Instantaneous and continuous emissions are two important molecule emission schemes in molecular communication. Up to now, very limited literatures consider the capacity in mole...Show More
Molecular communication has important application prospects on human health monitoring and medical treate-mente The nanomachines can be deployed in human body to eliminate cancer cells, monitor health conditions or transmit information in time. However, in a complex liquid environment, it is difficult for a mobile nanomachine to communicate stably with a receiver. Therefore, the purpose of this pa...Show More
Molecular communication is emerging as an advanced paradigm of communication, whose application ranges from biomedical to communication industry and information theory. However, the channel and propagation medium is always the biggest point of concern. Many works of literature have proposed the diffusion-based molecular communication but none of the literature has presented the implementation of i...Show More
Nano-communications have tremendous potential for applications in the biomedical, environmental, industrial and military fields. Molecular communication is a new communication paradigm which allows nanomachines to exchange information using molecules as carrier. This is the most promising communication method within nanonetworks, since using electromagnetic waves is not very likely due to the size...Show More
This paper is an outcome of a very new and challenging research ?eld of ?nding molecular communication network model. Identifying a molecular communication ?ow network is a very challenging task since there is no de?ned network model available. In this paper, we provide a novel hierarchical information ?ow model in insulin production process. We identify the model as a hierarchical network model. ...Show More
Molecular communication is a promising nanoscale communication paradigm that enables nanomachines to exchange information by using molecules as communication carrier. Up to now, the molecular communication channel between a transmitter nanomachine (TN) and a receiver nanomachine (RN) has been modeled as either concentration channel or timing channel. However, these channel models necessitate exact...Show More
This paper explores the in vivo distributed detection of an undesired biological agent's (BAs) biomarkers by a group of biological sized nanomachines in an aqueous medium under drift. The term distributed, indicates that the system information relative to the BAs presence is dispersed across the collection of nanomachines, where each nanomachine possesses limited communication, computation, and mo...Show More
In this paper, we propose an end-to-end electrical model to characterize the communication between two nanomachines via advection-diffusion motion along the conventional pipe medium. For this modeling, we consider three modules consisting of transmitter, advection-diffusion propagation and receiver. The modulation scheme and releasing molecules through the conventional pipe medium from the transmi...Show More
Molecular communication is expected to be instrumental in the advancement of nanotechnology. Implementation of robust molecular communication channels that work in conjunction with other nanodevices necessitates the development of synchronization techniques for such systems. Although a number of works exist in this area, most of the proposed solutions are infeasible given the computational limitat...Show More
In this paper, we analyze the capacity of a molecular communication channel in a one dimensional environment where information is represented with molecules that are released by a transmitter nanomachine, propagate via Brownian motion, degrade over time, and stochastically reach the receiver nanomachine. The channel is modeled as a time slotted binary channel, and two modulation schemes are propos...Show More
Molecular communication is a promising communication paradigm which enables information exchange by emitting and sensing molecules at a micro- or nano-scale. Time synchronization is a basic but important issue for molecular communication. This letter proposes a maximum likelihood estimator for the clock offset between two nanomachines in a molecular communication system with drift. In a directiona...Show More