Reception enhancement with protrusions in communication via diffusion

Genc, Gaye; Yilmaz, H. Birkan; Tuǧcu, Tuna

doi:10.1109/blackseacom.2013.6623387

Cited by 7 publications

(7 citation statements)

References 11 publications

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“…These molecules propagate through the environment following the physical characteristics of the channel, and when some of these molecules arrive at the receiver (i.e., hit the receiver), they are sensed and absorbed by the receptors on the surface of the receiver. The properties of these received molecules constitute the received signal [10],…”

Section: Introductionmentioning

confidence: 99%

ISI Mitigation Techniques in Molecular Communication

Tepekule

Pusane

Yilmaz

et al. 2015

IEEE Trans. Mol. Biol. Multi-Scale Commun.

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Molecular communication is a new field of communication where molecules are used to transfer information. Among the proposed methods, molecular communication via diffusion (MCvD) is particularly effective. One of the main challenges in MCvD is the intersymbol interference (ISI), which inhibits communication at high data rates. Furthermore, at the nano scale, energy efficiency becomes an essential problem. Before addressing these problems, a pre-determined threshold for the received signal must be calculated to make a decision. In this paper, an analytical technique is proposed to determine the optimum threshold, whereas in the literature, these thresholds are generally calculated empirically. Since the main goal of this paper is to build an MCvD system suitable for operating at high data rates without sacrificing quality, new modulation and filtering techniques are proposed to decrease the effects of ISI and enhance energy efficiency. As a transmitter-based solution, a modulation technique for MCvD, molecular transition shift keying (MTSK), is proposed in order to increase the data rate via suppressing the ISI.Furthermore, for energy efficiency, a power adjustment technique that utilizes the residual molecules is proposed. Finally, as a receiver-based solution, a new energy efficient decision feedback filter (DFF) is proposed as a substitute for the decoders such as minimum mean squared error (MMSE) and decision feedback equalizer (DFE). The error performance of DFF and MMSE equalizers are compared in terms of bit error rates, and it is concluded that DFF may be more advantageous when energy efficiency is concerned, due to its lower computational complexity.DRAFT

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Section: Introductionmentioning

confidence: 99%

ISI Mitigation Techniques in Molecular Communication

Tepekule

Pusane

Yilmaz

et al. 2015

IEEE Trans. Mol. Biol. Multi-Scale Commun.

Self Cite

152

140

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“…For example, protrusions favored on the transmitter-facing side of a receiver are very useful for capturing messenger molecules earlier, but the passerby molecules are ignored on the other sides of the receiver. A uniform distribution on the [11] whole surface has reception from all sides, but does so at the expense of messenger molecule reception time.…”

Section: Cvd With Protrusion Enhancementmentioning

confidence: 99%

“…The aim is to receive as many molecules as possible in a single Fig. 6 Probability of hitting the receiver versus various transmitter-receiver pair distances without protrusion [11] symbol duration, so that upcoming messages on consecutive symbol durations do not hamper each other's operations.…”

Section: Performance Evaluationmentioning

confidence: 99%

“…This idea focuses on manipulating the molecular communication channel between the transmitter-receiver couple using a secondary type Fig. 7 Probability of hitting the receiver versus various transmitter-receiver pair distances with protrusion, r prot = 0.5 µm, h prot = 3.5 µm [11] of molecules, called Destroyer Molecules (DM), in an effort to shape the received signal according to the desired signal structure.…”

Section: Tunnel-based Approach Using Destroyer Moleculesmentioning

confidence: 99%

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Understanding Communication via Diffusion: Simulation Design and Intricacies

Acar

Akkaya

Genc

et al. 2017

Modeling, Methodologies and Tools for Molecular and Nano-Scale Communications

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Understanding Communication via Diffusion (CvD) is key to molecular communications research since it dominates the movement at the nano-scale. The researcher needs to properly understand the random diffusion of the molecules for the analysis of a molecular communication system. This chapter aims explaining the dynamics of diffusion from a communication engineer's perspective as well as providing useful hints for an effective simulation design by discussing some key intricacies. The chapter starts with a brief survey of simulators for molecular communications, followed by the basics of the simulation of Brownian motion and CvD. Several intricacies are addressed to help the researcher in simulation design, such as the number of replications required in terms of movement and bit sequence. We utilize this information further by discussing the design of more complex CvD systems such as tunnel-based approach that utilizes destroyer molecules and distributed simulator design based on HLA. Introduction of more complex CvD systems provides significant improvements in data rate and communications in general, bridging the gap between human-scale and nano-scale systems and enabling nanonetworking as a viable technology.

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“…The key work here can be found in [1] where the model was presented under the assumption that the number of molecules transmitted in one time slot, but received in different successive time slots, was independent. This prevailing assumption was carried forward and considered to be fair within the community for quite some time as seen by numerous key papers from esteemed authors in [2][3][4][5][6][7][8][9].…”

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confidence: 99%