Abstract
In this paper, we propose a new scheme of time-diversity system using Optical Code Division Multiple Access (OCDMA) in free space optical (FSO) communication. Our design is a fully-optical communication system which facilitates synthesizing the time-diversity signals. We found that it can effectively minimize the influence of scintillation caused by atmospheric turbulence. We analyze the bit error rate performance of the OCDMA time-diversity scheme through atmospheric turbulence channel. We not only consider the intensity scintillation, but also consider scintillation temporal-frequency. We present the theoretical analysis which is based on lognormal model. And validate the performance of the proposed scheme through simulation. It shows that under some circumstance the bit error rate (BER) can be improved by a few orders of magnitude using the OCDMA time-diversity scheme to compensate for the scintillation.
| Original language | English |
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| Title of host publication | 2010 IEEE Globecom Workshops, GC'10 |
| Pages | 1020-1025 |
| Number of pages | 6 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | 2010 IEEE Globecom Workshops, GC'10 - Miami, FL Duration: 2010 Dec 5 → 2010 Dec 10 |
Other
| Other | 2010 IEEE Globecom Workshops, GC'10 |
|---|---|
| City | Miami, FL |
| Period | 10/12/5 → 10/12/10 |
Keywords
- Atmospheric turbulence
- Free space optical (FSO)
- Optical Code Division Multiple Access (OCDMA)
- Scintillation
ASJC Scopus subject areas
- Computer Networks and Communications
- Communication