A Cooperative Mobile Satellite Communication System with the Dynamic Space-Time Coding

被引：0
|
作者：
Wang, Gengrun [1 ]
Zhang, Bangning [2 ]
Pan, Kegang [2 ]
Liu, Aijun [2 ]
Guo, Daoxing [2 ]
机构：
[1] Natl Digital Switching Syst Engn & Technol Res Ct, Zhengzhou 450002, Henan, Peoples R China
[2] PLA Univ Sci & Technol, Coll Commun Engn, Nanjing 210007, Jiangsu, Peoples R China
来源：
MATHEMATICAL PROBLEMS IN ENGINEERING | 2015年 / 2015卷
关键词：
D O I：
10.1155/2015/160793
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Channels of mobile satellite communications are affected by multipath fading and shadowing attenuation. At the same time, diversity gains are believed to improve the transmission reliability in fading channels. Considering that the traditional Space-Time Coding (STC) is not suitable for the cooperative mobile satellite communication, in this paper, a new cooperative mobile satellite communication system is proposed based on the Dynamic Space-Time Coding (D-STC). The transmitting energy of the proposed scheme is saved by avoiding forwarding erroneous signals in cooperative users. Meanwhile, this system benefits fromdiversity gains and the transmission is robust. Additionally, a closed-formexpression of the outage probability for the proposed scheme is derived, and then it is demonstrated that this scheme is much better than the existing noncooperative scheme and schemes with traditional STCs in the outage performance. Finally, the analytical result is supported and validated by numerical simulations.
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页数：8
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