Balancing Coverage and Response Time in Area Target Scheduling for Satellite Networks

作者：He, Lijun; Liang, Ben; Li, Jiandong^*; Sheng, Min

来源：IEEE Transactions on Vehicular Technology, 2020, 69(6): 6848-6853.

DOI：10.1109/TVT.2020.2989388

• Area target scheduling
• satellite networks
• linear programming
• constant approximation bound

We study the area target scheduling problem in satellite networks, aiming at maximizing coverage ratio whilst minimizing response time. To balance these two conflicting objectives, we consider their weighted sum and formulate an integer programming problem. By leveraging this problem's underlying structure, we equivalently decompose it into two nested subproblems. We then propose an approximation algorithm that is shown to have 1 - e(-1) performance bound. Finally, our simulation results show that the maximum performance loss is within 8% over a wide range of weights between the coverage ratio and the response time.

• 单位
  西安电子科技大学; 综合业务网理论及关键技术国家重点实验室