Optimal Detection Interval for Absorbing Receivers in Molecular Communication Systems with Interference

Cao, Trang Ngoc; Zlatanov, Nikola; Yeoh, Phee Lep; Evans, Jamie

doi:10.1109/icc.2018.8422572

Cited by 5 publications

(8 citation statements)

References 17 publications

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“…The optimal reception delay of the absorbing receiver was approximately derived in [28], thus providing a reliable guide for receiver design. Second, truncating the symbol interval in advance means that the detection process will be terminated ahead of the end of a symbol period, as proposed in [31] for the MCvD system comprised of a transmitter, an absorbing receiver, and an interference source. The authors of [31] found a proper detection interval, which can effectively overcome the interference from unintended transmitters.…”

Section: Introductionmentioning

confidence: 99%

“…Second, truncating the symbol interval in advance means that the detection process will be terminated ahead of the end of a symbol period, as proposed in [31] for the MCvD system comprised of a transmitter, an absorbing receiver, and an interference source. The authors of [31] found a proper detection interval, which can effectively overcome the interference from unintended transmitters. Third, extracting a portion of the symbol duration means that the detection process will start late and end early.…”

Section: Introductionmentioning

confidence: 99%

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Detection Interval for Diffusion Molecular Communication: How Long is Enough?

Chen¹,

Wen²,

Ji³

et al. 2022

Preprint

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Molecular communication has a key role to play in future medical applications, including detecting, analyzing, and addressing infectious disease outbreaks. Overcoming inter-symbol interference (ISI) is one of the key challenges in the design of molecular communication systems. In this paper, we propose to optimize the detection interval to minimize the impact of ISI while ensuring the accurate detection of the transmitted information symbol, which is suitable for the absorbing and passive receivers. For tractability, based on the signal-to-interference difference (SID) and signal-to-interference-and-noise amplitude ratio (SINAR), we propose a modified-SINAR (mSINAR) to measure the bit error rate (BER) performance for the molecular communication system with a variable detection interval. Besides, we derive the optimal detection interval in closed form. Using simulation results, we show that the BER performance of our proposed mSINAR scheme is superior to the competing schemes, and achieves similar performance to optimal intervals found by exhaustive search.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Detection Interval for Diffusion Molecular Communication: How Long is Enough?

Chen¹,

Wen²,

Ji³

et al. 2022

Preprint

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“…However, [11], [15]- [17] did not consider the impact of external interference from an unintended transmitter when optimizing the detection interval in terms of the system performance and only considered the internally generated inter-symbol interference (ISI) and constant-mean noise from the environment. The detection interval was optimized for minimizing the BER in [11], [15], [17], and for maximizing the capacity in [16] 1 . Moreover, [11], [15], [16] determined the optimal detection time interval by exhaustive search, whereas [17] derives an approximately optimal detection time interval.…”

Section: Introductionmentioning

confidence: 99%

“…‚ We optimize the detection interval and improve the BER 1 The period length τ in which molecules are absorbed by the receivers and removed from the environment, i.e., the period that is not the detection interval, was investigated and defined in [15] as the cleanse time.…”

Section: Introductionmentioning

confidence: 99%

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Optimal Detection Interval for Absorbing Receivers in Molecular Communication Systems with Interference

Cao¹,

Zlatanov²,

Yeoh³

et al. 2020

Preprint

Self Cite

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We consider a molecular communication system comprised of a transmitter, an absorbing receiver, and an interference source. Assuming amplitude modulation, we analyze the dependence of the bit error rate (BER) on the detection interval, which is the time within one transmission symbol interval during which the receiver is active to absorb and detect the number of information-carrying molecules. We then propose efficient algorithms to determine the optimal detection interval that minimizes the BER of the molecular communication system assuming no inter-symbol interference (ISI). Simulation and numerical evaluations are provided to highlight further insights into the optimal results. For example, we demonstrate that the optimal detection interval can be very small compared to the transmission symbol interval. Moreover, our numerical results show that significant BER improvements are achieved by using the optimal detection interval for systems without and with ISI.

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Low Complexity First: Duration-Centric ISI Mitigation in Molecular Communication via Diffusion

Chen

Wen

et al. 2022

IEEE Commun. Lett.

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In this paper, we propose a novel inter-symbol interference (ISI) mitigation scheme for molecular communication via diffusion (MCvD) systems with optimal detection interval. Its rationale is to exploit the discarded duration (i.e., the symbol duration outside this optimal interval) to relieve ISI in the target system. Following this idea, we formulate an objective function to quantify the impact of the discarded time on bit error rate (BER) performance. Besides, an optimally reusable interval within the discarded duration is derived in closed form, which applies to both the absorbing and passive receivers. Finally, numerical results validate our analysis and show that for the considered MCvD system, significant BER improvements can be achieved by using the derived reusable duration.

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Optimal Detection Interval for Absorbing Receivers in Molecular Communication Systems with Interference

Cited by 5 publications

References 17 publications

Detection Interval for Diffusion Molecular Communication: How Long is Enough?

Detection Interval for Diffusion Molecular Communication: How Long is Enough?

Optimal Detection Interval for Absorbing Receivers in Molecular Communication Systems with Interference

Low Complexity First: Duration-Centric ISI Mitigation in Molecular Communication via Diffusion

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