| AWGN信道高阶调制物理层网络编码的SER性能 |
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| 引用本文： | 李丹丹,熊轲,杜冠瑶,张煜,裘正定.AWGN信道高阶调制物理层网络编码的SER性能[J].应用科学学报,2013,31(1):27-33. |
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| 作者姓名： | 李丹丹 熊轲 杜冠瑶 张煜 裘正定 |
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| 作者单位： | 1. 北京交通大学信息科学研究所，北京100044
2. 清华大学电子工程系，北京100084 |
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| 基金项目： | 国家自然科学基金(No.61201203);中国博士后科学基金(No.20100480329)资助 |
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| 摘 要： | 扩展了最近邻近似方法使之能描述物理层网络编码的误符号率，并用该方法分析了双向中继网络中物理层网络编码在高阶调制下的误符号率. 以8PSK为例，推导了高阶调制下PNC在AWGN信道中误符号率的闭式表达. 研究发现，固定一个源节点的发射功率时，系统的SER并不会随着另一端源节点功率的提高而单调递减. 蒙
特卡罗仿真结果表明，所得表达式能正确刻画8PSK调制下物理层网络编码的误符号率.
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| 关 键 词： | 物理层网络编码 8PSK调制 误符号率 |
| 收稿时间： | 2012-01-06 |
| 修稿时间： | 2012-09-17 |
SER Analysis for High-Order Modulated Physical Layer Network Coding over AWGN Channels |
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| LI Dan-dan
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XIONG Ke
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DU Guan-yao
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ZHANG Yu
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QIU Zheng-ding.SER Analysis for High-Order Modulated Physical Layer Network Coding over AWGN Channels[J].Journal of Applied Sciences,2013,31(1):27-33. |
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| Authors: | LI Dan-dan XIONG Ke DU Guan-yao ZHANG Yu QIU Zheng-ding |
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| Institution: | 1. Institute of Information Science, Beijing Jiaotong University, Beijing 100044, China;
2. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | We extend the nearest neighbor approximation method and investigate the symbol error rate (SER) over AWGN channels for physical layer network coding with high order modulation. We derive a closed-form expression of PNC’s SER with 8PSK modulation over AWGN channels. We find that, when the power of one source node is fixed, SER of PNC does not monotonously decrease with the increase of the power of the other source node. Simulation results show that the derived SER expression can characterize the SER performance of PNC’s SER with 8PSK modulation over AWGN channels. |
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| Keywords: | physical layer network coding 8PSK modulation symbol error rate (SER) |
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