电讯技术Issue(12)：1598-1604,7.DOI:10.3969/j.issn.1001-893x.2013.12.011
ACM技术在卫星通信IP网互联中的应用
Application of Adaptive Coding and Modulation Technique in IP Networks Interconnection over Satellite Communication
林习良 1周锦标 1赵乾宏1
作者信息
- 1. 中国卫星海上测控部，江苏 江阴214431
- 折叠
摘要
Abstract
The signal-to-noise ratio ( SNR) metric is used to determine the mode of coding and modulation in adaptive coding and modulation( ACM) technique. ACM turns fade margin into increased link capacity and promises to improve the spectral efficiency in wireless channel. In order to solve the problem of the in-creased requirements for transmission bandwidth in IP-based satellite communication, scheme of applying adaptive coding and modulation technique to IP networks interconnection is proposed. By comparison of the performances between two different techniques, DVB-S2_ACM and VersaFEC_ACM, the feasibility and working process of applying VersaFEC_ACM technique to IP networks interconnection over satellite com-munication between the ship and land are analyzed. Link budget calculation and performance comparison results show that bandwidth utilization is improved by 95% while the anti-fading margin increased by 6 dB for the channel of 1 024 kb/s between the ship and land. The resource utilization and system availability in satellite communications can be improved with the technique. This research provides a reference for subse-quent engineering applications.关键词
卫星通信/IP网/自适应编码调制/频谱效率/系统可用度Key words
satellite communication/IP network/adaptive coding and modulation/spectral efficiency/sys-tem availability分类
信息技术与安全科学引用本文复制引用
林习良,周锦标,赵乾宏..ACM技术在卫星通信IP网互联中的应用[J].电讯技术,2013,(12):1598-1604,7.
