Scintillation reduction using multi-beam propagating technique in atmospheric WOCDMA system
| Autor: | Danli Xu, Yaqin Zhao, Xin Zhong |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
Scintillation Code division multiple access business.industry Optical communication Optical power Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Reduction (complexity) Optics Bit error rate Multi beam Physics::Accelerator Physics Wireless Electrical and Electronic Engineering business |
| Zdroj: | Chinese Optics Letters. 9:110602-110605 |
| ISSN: | 1671-7694 |
| DOI: | 10.3788/col201109.110602 |
| Popis: | We propose employing multi-beam propagating technology to mitigate the influence of atmospheric scintillation to the wireless optical code division multiple access (WOCDMA) system and then deduce the bit error rate (BER) formulas of systems in weak and strong scintillations, respectively. According to simulation experiment results, multi-beam propagation can improve the system performance very well compared with single-beam propagating technique. Moreover, the more beams we use, the better the performance we get. When the received optical power is –30 dBm, the BER of the system employing four beams is 5 and 1 dB lower than that of using single-beam propagating technique in weak and strong scintillations, respectively. |
| Databáze: | OpenAIRE |
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