Anti-Interference Analysis of Multiplexing Methods for GBBF System

被引：0
|
作者：
Lu, Nan [1 ]
Sun, Xue [1 ]
Huang, Hao [1 ]
Shao, Liwei [2 ]
机构：
[1] Beijing Inst Technol, Sch Informat Sci & Elect, Beijing, Peoples R China
[2] Res Inst BIT Zhongshan, Zhongshan, Peoples R China
来源：
PROCEEDINGS OF 2016 8TH IEEE INTERNATIONAL CONFERENCE ON COMMUNICATION SOFTWARE AND NETWORKS (ICCSN 2016) | 2016年
关键词：
multiplexing; ground-based beam forming; CDM; TDM; FDM;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Ground-Based Beam Forming (GBBF) is one of the key technologies for satellite mobile communication systems. In the GBBF system, Frequency Division Multiplexing (FDM), Time Division Multiplexing (TDM) and Code Division Multiplexing (CDM) are three major multiplexing methods in transmitting feeding signals to gateway stations on the ground. This paper discusses the channel modeling in GBBF systems. The simulation model focuses on the Geosynchronous Satellite Channel (GSC) transmission. By applying the three multiplexing methods to GSC processing, we analyze the Correlation Loss (CL) of feeding signals in the situation of different Signal Noise Ratio (SNR) and Output-power Back-off (OBO) values. After simulation, we observe that for GBBF system, CDM method is less affected by the noise in channel with nonlinear distortion, and has better anti-interference performance than TDM and FDM when SNR is not higher than 22dB.
引用
收藏
页码：236 / 240
页数：5
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