1. 南京电讯技术研究所,江苏,南京,210007
2. 解放军理工大学通信工程学院,江苏,南京,210007
3. 南京邮电大学信号处理与传输研究院,江苏,南京,210003
4. 南京电讯技术研究所,江苏,南京,210007
5. 解放军理工大学通信工程学院,江苏,南京,210007
6. 南京邮电大学信号处理与传输研究院,江苏,南京,210003
网络出版:2018-01-25,
纸质出版:2018
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林敏, 姜杨威, 欧阳键, 等. 存在干扰的星地混合协作传输性能分析[J]. 电子学报, 2018,46(1):8-14.
LIN Min, JIANG Yang-wei, OUYANG Jian, et al. The Performance of a Hybrid Satellite-Terrestrial Cooperative Networks with Interferences[J]. Acta Electronica Sinica, 2018, 46(1): 8-14.
林敏, 姜杨威, 欧阳键, 等. 存在干扰的星地混合协作传输性能分析[J]. 电子学报, 2018,46(1):8-14. DOI: 10.3969/j.issn.0372-2112.2018.01.002.
LIN Min, JIANG Yang-wei, OUYANG Jian, et al. The Performance of a Hybrid Satellite-Terrestrial Cooperative Networks with Interferences[J]. Acta Electronica Sinica, 2018, 46(1): 8-14. DOI: 10.3969/j.issn.0372-2112.2018.01.002.
分析了地面多个中继节点采用放大转发协议辅助卫星通信构成的星地混合协作网存在同信道干扰时的性能.首先在用户端采用最大比合并方案并受到同信道干扰的情况下,得到其输出信干噪比的表达式.其次针对卫星链路服从阴影莱斯分布和地面链路服从瑞利分布的情况,推导出输出信干噪比的矩母函数,并进一步得到系统平均误符号率的解析表达式.接着,推导出高信噪比条件下系统平均误符号率的近似表达,为估算系统的性能提供了更加快速的方法.最后,计算机仿真验证了理论计算公式的准确性,并分析了信道参数、中继数目和调制方式对星地混合协作传输的影响.
This paper makes an investigation of the performance of a hybrid satellite-terrestrial cooperative network (HSTCN). In this system
some terrestrial amplify-and-forward (AF) relays with fixed-gain are employed to assist the signal transmission from a satellite to a destination which is corrupted by multiple co-channel interferences (CCIs)
and the satellite links experience Shadowing-Rician fading while the terrestrial links undergo Rayleigh fading. Then
by assuming that maximum ratio combining (MRC) is used at the destination
the output signal-to-interference-plus-noise ratio (SINR) is obtained. Afterwards
we derive the moment generating function (MGF) of the destination and then present the analytical average symbol error rate (ASER) expression for the considered cooperative system. In addition
to obtain further insights
we also develop the asymptotic ASER analysis on the diversity order and array gain. Finally
numerical results are obtained with the help of computer
which demonstrates the validity of the performance analysis and the impacts of shadowing parameters
relay number and CCIs on the considered HSTCN.
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