Inter-symbol interference reduction channel codes based on time gap in diffusion-based molecular communications
| Autor: | Alireza Keshavarz-Haddad, Parvin Akhkandi, Ali Jamshidi |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Molecular communication
Computer Networks and Communications Computer science Applied Mathematics 020206 networking & telecommunications 02 engineering and technology 021001 nanoscience & nanotechnology Variable length Time gap Random delay Probability of error 0202 electrical engineering electronic engineering information engineering Electrical and Electronic Engineering 0210 nano-technology Algorithm Interference reduction Coding (social sciences) |
| Zdroj: | Nano Communication Networks. 19:148-156 |
| ISSN: | 1878-7789 |
| DOI: | 10.1016/j.nancom.2019.01.001 |
| Popis: | In diffusion-based molecular communication simple modulation techniques based on the concentration, type, or released time of molecules are commonly used. However, random delay of the diffused molecules in environment can cause some strong inter-symbol interference (ISI) among consecutive symbols. Due to the limited computational capabilities of nano-machines, sophisticated modulation and coding schemes cannot be used to resolve this issue . In this paper, we propose several new, yet simple, ISI-resistant coding schemes for diffusion-based communications over a one-dimensional noiseless channel. These schemes map the information bits into variable length codewords and place time-gaps between the consecutive codewords to mitigate ISI issue. Our analytical and simulation results indicate that the proposed schemes provide superior performances in terms of probability of error and throughput compared to the existing schemes. |
| Databáze: | OpenAIRE |
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