Citation
Abstract
Deep-space optical communications are subject to outages arising from deterministic clear line-of-sight dynamics as well as unpredictable weather effects at the ground station. These effects can be mitigated using buffering and automatic retransmission techniques. We provide an analysis that incorporates a realistic weather model based on a twostate Markov chain. Performance for a hypothetical Mars 2022 optical mission is derived incorporating dynamics over an entire 728-day synodic cycle, during which link passes and link data rate vary. Buffer sizing is addressed and operational implications are identified. Also, buffer occupancy results are extended for deep-space missions spanning a range of link data rates.
Details
- Volume
- 42-205
- Published
- May 15, 2016
- Pages
- 1–19
- File Size
- 556.5 KB