| Liu Fang(刘芳),Wang Ying,Zhang Ke,Yuan Jun.[J].高技术通讯(英文),2011,17(2):146~152 |
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| Spot beam handover trigger and channel allocation scheme in GEO mobile satellite communication |
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| DOI： |
| 中文关键词: |
| 英文关键词: spot beam handover, GEO satellite, adaptive channel allocation, emergency user |
| 基金项目: |
| Author Name | Affiliation | | Liu Fang(刘芳) | | | Wang Ying | | | Zhang Ke | | | Yuan Jun | |
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| 中文摘要: |
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| 英文摘要: |
| An effective spot beam handover trigger and channel allocation scheme is proposed for GEO mobile satellite communication based on its characteristic and application. By using both signal strength and terminal location information, necessary handover is triggered promptly and accurately to reduce the negative effect of long signaling delay. Then handover decision is made with the handover queuing and channel allocation strategy. An adaptive channel resource allocation scheme is considered to optimize resource utilization with guarantee of emergency communication, which is significant for emergency rescue and disaster relief. Simulation results show that the proposed scheme prevents unnecessary handover effectively and has favorable adaptability to emergent requirement of satellite communication. |
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