A New Code Family for QS-CDMA Visible Light Communication Systems
| Autor: | Ali Djebbari, Mouad Addad |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
020210 optoelectronics & photonics
Computer Networks and Communications business.industry Computer science Code division multiple access 0202 electrical engineering electronic engineering information engineering Code (cryptography) Visible light communication 02 engineering and technology Electrical and Electronic Engineering business Computer hardware |
| Zdroj: | Journal of Telecommunications and Information Technology. 3:5-8 |
| ISSN: | 1899-8852 1509-4553 |
| Popis: | Visible light communication (VLC) is a promising technology for wireless communication networks. Optical code division multiple access (OCDMA) is a strong candidate for VLC-based applications. The predominant source of bit error in OCDMA is the multiple access interference (MAI). To eliminate MAI in synchronous OCDMA, zero cross correlation (ZCC) codes have been proposed. However, synchronization problems and multipath propagation introduce relative non-zero time delays. Therefore, the zero correlation zone (ZCZ) concept was introduced. In this paper, we propose a new method for generating ZCC codes. The proposed construction can accommodate any number of users with flexible Hamming weight. The numerical results obtained show that the proposed codes significantly reduce MAI, compared to ZCC, as well as ZCZ codes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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