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| Nakagami-m衰落下中继系统性能分析 | |
| 引用本文： | 李兴旺,李静静,靳进,李立华. Nakagami-m衰落下中继系统性能分析[J]. 西安电子科技大学学报(自然科学版), 2018, 45(3): 117-122. DOI: 10.3969/j.issn.1001-2400.2018.03.021 |
| 作者姓名： | 李兴旺 李静静 靳进 李立华 |
| 作者单位： | (1. 河南理工大学 物理与电子信息学院，河南 焦作 454000；2. 北京邮电大学 网络与交换技术国家重点实验室，北京 100876;3. 郑州大学 信息工程学院，河南 郑州 450001) |
| 基金项目： | 国家自然科学基金资助项目(61501404, 61471057)；河南理工大学博士基金资助项目(B2016-34)；北京邮电大学网络与交换国家重点技术实验室开放基金资助项目(SKLNST-2016-1-02)；河南省科技攻关资助项目(172102210023) |
| 摘 要： | 针对硬件损伤中继系统，研究了Nakagami-m衰落信道下固定增益放大转发中继系统的性能．考虑两种场景: 一是源节点和目的节点不仅通过中继连接，而且源节点和目的节点间存在直连路径; 二是源节点和目的节点间仅通过固定增益放大转发中继连接． 在第1种场景中，目的节点通过选择合并算法处理接收的信息． 推导出两种场景下中继系统的中断概率准确闭式表达式． 通过计算机仿真表明: 存在直连情况的中继系统能够有效地提高系统的中断概率性能; 硬件损伤制约两种场景下系统的性能; 系统性能随着伽马阴影的形状参数值的增大而增强． |
| 关 键 词： | 硬件损伤 Nakagami-m衰落 选择合并 中断概率 |
| 收稿时间： | 2017-06-12 |
Performance analysis of relaying systems over Nakagami-m fading with transceiver hardware impairments |
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| LI Xingwang,LI Jingjing,JIN Jin,LI Lihua. Performance analysis of relaying systems over Nakagami-m fading with transceiver hardware impairments[J]. Journal of Xidian University, 2018, 45(3): 117-122. DOI: 10.3969/j.issn.1001-2400.2018.03.021 | |
| Authors: | LI Xingwang LI Jingjing JIN Jin LI Lihua |
| Affiliation: | (1. School of Physics and Electronic Information Engineering, Henan Polytechnic Univ., Jiaozuo 454000, China;2. State Key Lab. of Networking and Switching Technology, Beijing Univ. of Posts and Telecommunication, Beijing 100876, China;3. School of Information and Engineering, Zhengzhou Univ., Zhengzhou 450001, China) |
| Abstract: | This paper investigates the effects of transceiver hardware impairments on the performance of relaying systems. In particular, the fixed gain amplify-and-forward(AF) relaying system over Nakagami-m fading channels is considered. Two scenarios are included: ①the source node is connected to the destination node through the assistance of relaying, whilst the direct link between the source node and the destination node is existent; ②the source node communicates with the destination node with the aid of AF relaying. In the first scenario, the destination node processes the received information using the selecting combining(SC) algorithm. To analyze the performance of the two scenarios, the analytical closed-form expressions for the outage probability of relaying systems are derived. Simulation results reveal that the outage probability performance can be effectively improved through the relaying, that the hardware impairment parameter has deleterious effects on system performance and that the shape parameter of Gamma is always beneficial to the performance of the system. |
| Keywords: | hardware impairments Nakagami-m fading selecting combining outage probability |
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