MAP detector performance analysis in diffusion-based relaying molecular communications
| Autor: | Alireza Keshavarz-Haddad, Ghazaleh Ardeshiri, Ali Jamshidi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Decodes
Offset (computer science) biology Molecular communication Computer Networks and Communications Computer science Applied Mathematics Detector Transmitter 020206 networking & telecommunications Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology 021001 nanoscience & nanotechnology biology.organism_classification Communications system law.invention Relay law 0202 electrical engineering electronic engineering information engineering Electronic engineering Relay network Electrical and Electronic Engineering 0210 nano-technology Computer Science::Information Theory |
| Zdroj: | Nano Communication Networks. 19:81-91 |
| ISSN: | 1878-7789 |
| Popis: | Molecular Communication via Diffusion (MCvD) is a promising paradigm which enables nano-machines to communicate with each other. However, the reliability of existing communication systems degrades rapidly as the distance between the transmitters and the receivers grows. To solve this issue, relaying schemes must be implemented in practice. In this paper, we study two relaying schemes: In the first case, the relay node decodes the incoming signal symbol and forwards it to the receiver using a different types of molecules. Then, the receiver detects the information bits by only considering the molecules from the relay node. In the second case, the receiver considers both types of molecules sent from the transmitter and the relay node. Closed-form expression for the end-to-end bit error probability of the these two schemes are derived. Also, we obtain optimal relay location for both schemes. Moreover, we study the optimal threshold, concentration, baud-rate and timing offset to mitigate the overall Inter-Symbol Interference(ISI) and obtain maximum throughput in the relay network. |
| Databáze: | OpenAIRE |
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