Link-layer handover in earth-fixed LEO satellite systems
2009 IEEE International Conference on Communications, ICC 2009, Dresden, Almanya, 14 - 18 Haziran 2009, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Doi Numarası: 10.1109/icc.2009.5199139
- Basıldığı Şehir: Dresden
- Basıldığı Ülke: Almanya
- Anahtar Kelimeler: Earth-fixed satellite system, Satellite network, Soft handover
- Boğaziçi Üniversitesi Adresli: Evet
Özet
Using Virtual Node (VN) approach, network layer handover can be eliminated in earth-fixed LEO satellite systems. However, handover in lower layers could result in significant data loss. In this work we propose a link-layer handover algorithm for VN-based satellite systems: Virtual Node Handover Algorithm (VN-HO). Further, we propose to increment number of satellites per orbit in order to enable soft handover. On the modified system, which can be represented by multi-state virtual network (MSVN) topology, we propose a soft handover algorithm (MSVN-SHO). Relying on test results, MSVN-SHO is faster and smoother than VN-HO, despite a marginal increase in the cost. ©2009 IEEE.