The space-air-ground integrated network (SAGIN) has garnered significant attention in recent years due to its capability to extend communication networks from terrestrial environments to near-ground and space contexts. The application of SAGIN enables to achieve a high-quality, multi-functional, and complex communication requirements, which are essential for sixth-generation communication systems. This paper presents a topology aware (TA) framework to leverage the topological structure in SAGIN to address the multi-functional communication challenge, particularly the integrated sensing, communication, and power transfer (ISCPT) problem. To take advantage of the topological structure, we initially establish the topology according to the criteria of visibility and channel strength. The ISCPT problem can be reformulated into a topological structure as a mixed integer linear program, providing valuable insights from the objectives and constraints. Results demonstrate the superior performance of our solution compared to the benchmarks.

翻译：空天地一体化网络（SAGIN）因其能够将通信网络从地面环境扩展到近地和空间场景，近年来受到广泛关注。SAGIN的应用旨在满足高质量、多功能、复杂的通信需求，这对于第六代通信系统至关重要。本文提出一种拓扑感知（TA）框架，以利用SAGIN中的拓扑结构来应对多功能通信挑战，特别是集成感知、通信与能量传输（ISCPT）问题。为充分利用拓扑结构，我们首先根据可见性和信道强度准则建立拓扑。ISCPT问题可被重新表述为一个混合整数线性规划形式的拓扑结构，从而从目标函数和约束条件中获得有价值的洞见。结果表明，与基准方法相比，我们的解决方案具有更优越的性能。