A5037887763- Satellite Communication Systems
- IoT Networks and Protocols
- Opportunistic and Delay-Tolerant Networks
- Advanced Wireless Network Optimization
- Wireless Communication Networks Research
- Interconnection Networks and Systems
- Software-Defined Networks and 5G
- Mobile Agent-Based Network Management
Xidian University
2021-2024
Diverse Internet of Things (IoT) devices strategically deployed in remote geographical areas, spanning lands and offshore locations, play a crucial role environmental surveillance. The inherent limitations terrestrial network accessibility have necessitated the integration these with satellites 6G Non-Terrestrial Networks (NTNs), offering unparalleled flexibility affordability through extensive coverage robust connectivity. However, challenges such as constrained timeliness data processing...
Integrated terrestrial-satellite networks (lTSNs) are envisioned to provide seamless broadband services through evolving terrestrial B5G/6G cellular systems and emerging mega satellite constellations. The inherent dual mobility (i.e., satellites ubiquitous mobile users) highly overlapped footprints in such ITSNs may result massive frequent handovers. This increases handover delays, signaling overheads, decision making loads, especially under existing fixed, even limited, deployments of...
The network control plays a vital role in the mega satellite constellation (MSC) to coordinate massive nodes ensure effectiveness and reliability of operations services for future space wireless communications networks. One critical issues is how design an optimal structure (ONCS) by configuring least number controllers achieve efficient interaction within limited hops. Considering wide coverage, rising capacity, no geographical constraints platforms, this paper contributes designing ONCS...
To deal with the challenges in mobility management of mega low-Earth-orbit (LEO) satellite constellations long delays and high signaling overheads, especially under existing fixed limited deployments ground entities, cooperative mode medium-Earth-orbit (MEO) satellites stations (GSs) has become an attractive tendency. In this paper, considering global non-uniform user distribution constrained storage resources, we propose a dynamic satellite-ground integrated strategy (DSG-MMS) to cope...
The number of satellites in the current low-Earth-orbit (LEO) satellite networks continues to grow form a mega LEO constellation (MLSC). This large-scale net-working effectively improves network coverage and capacity. However, denser deployment brings more severe chal-lenges handovers, such as frequent which exponentially reduce system performance (e.g. probability service success (PSS)) when considering inherent handover failures. To ensure continuity, this paper focuses on relationship...
Edge artificial intelligence (AI) and space-ground integrated networks (SGIN) are two main usage scenarios of the sixth-generation (6G) mobile networks. AI supports pervasive low-latency services to users, whereas SGIN provide digital spatial, aerial, maritime ground users. This article advocates integration technologies by extending edge space, thereby delivering every corner planet. Beyond a simple combination, our novel framework, called Space-ground Fluid AI, leverages predictive...