The Converged Scheduling for Time Sensitive Mission in Satellite Formation Flying
- Publisher:
- Institute of Electrical and Electronics Engineers (IEEE)
- Publication Type:
- Conference Proceeding
- Citation:
- GLOBECOM 2022 - 2022 IEEE Global Communications Conference, 2023, 00, pp. 4691-4696
- Issue Date:
- 2023-12-08
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| Filename | Description | Size | |||
|---|---|---|---|---|---|
| The_Converged_Scheduling_for_Time_Sensitive_Mission_in_Satellite_Formation_Flying.pdf | Published version | 1.22 MB |
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Satellite formation flying with functional payloads can provide flexibility and real-time services for time sensitive missions through the cooperation of intra-satellite wired and inter-satellite wireless communication systems. However, the difference between wired and wireless scheduling mechanisms will increase the instability of forwarding delay at satellite. To solve this problem, we propose a wired and wireless converged scheduling scheme. Firstly, we construct the transmission rate and time division multiple access scheduling model to describe the inter-satellite link, and the IEEE 802.1Qbv scheduling model for wired link respectively. Secondly, we analyze the influence of the position of packet in different time slots on the forwarding delay, to model the relationship between the converged scheduling and forwarding delay. Finally, we formulate the converged scheduling as a zero-one programming problem with minimum jitter, and adopt the genetic-tabu search algorithm to solve it. Simulation results demonstrate that the delay is reduced by 20%, the jitter is not higher than $40\mu\mathrm{s}$.
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