Abstract
This paper analyzes the impact of tracking errors on the time diversity structure in relation to beam tracking over free-space optics (FSO) links. The paper proposes a time-diversity scheme with beam tracking introducing a powerfading model for an FSO system that utilizes beam tracking through atmospheric turbulence. Further, the paper derives a closed-form bit error rate (BER) for no-diversity and dual-diversity schemes, taking into account the tracking error, coherence of the diversity signals and photo detector noise. It is shown that time diversity is a clever mitigation technique for improving transmission reliability for the FSO system with beam tracking. Comparing with space diversity, time diversity is cost effective and easy to use in FSO.
| Original language | English |
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| Title of host publication | 2012 IEEE Globecom Workshops, GC Wkshps 2012 |
| Pages | 1188-1192 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | 2012 IEEE Globecom Workshops, GC Wkshps 2012 - Anaheim, CA Duration: 2012 Dec 3 → 2012 Dec 7 |
Other
| Other | 2012 IEEE Globecom Workshops, GC Wkshps 2012 |
|---|---|
| City | Anaheim, CA |
| Period | 12/12/3 → 12/12/7 |
ASJC Scopus subject areas
- Computer Networks and Communications