| 基于IEEE 802.16e标准的LDPC-COFDM无线通信系统 |
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| 引用本文： | 赵旦峰,张杰,杨泽亮.基于IEEE 802.16e标准的LDPC-COFDM无线通信系统[J].佳木斯大学学报,2008,26(4). |
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| 作者姓名： | 赵旦峰 张杰 杨泽亮 |
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| 作者单位： | 哈尔滨工程大学信息与通信工程学院 黑龙江哈尔滨150001 |
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| 摘 要： | 深入研究了基于IEEE 802.16e标准的LDPC编码的OFDM无线通信系统.分析了标准中LDPC码校验矩阵构造和相应的快速编码方法,建立了LDPC-COFDM无线通信系统.在16QAM调制方式下,分别在高斯信道和多径信道下进行系统性能仿真,并与卷积码编码的OFDM系统性能进行比较.仿真结果表明LDPC编码的OFDM系统具有更好的纠错性能.
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| 关 键 词： | IEEE802.16e LDPC码 LDPC-COFDM |
LDPC-COFDM Wireless Communication System Based on IEEE 802.16e Standard |
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| ZHAO Dan-feng,ZHANG Jie,YANG Ze-liang.LDPC-COFDM Wireless Communication System Based on IEEE 802.16e Standard[J].Journal of Jiamusi University(Natural Science Edition),2008,26(4). |
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| Authors: | ZHAO Dan-feng ZHANG Jie YANG Ze-liang |
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| Abstract: | Based on IEEE 802.16e standard,a low-density parity-check(LDPC) coded orthogonal frequency division multiplexing(OFDM) wireless communication system is further investigated.The parity check matrixes and the fast encoding methods are researched.Then the LDPC-COFDM wireless communication system is constructed.Under 16QAM modulation,the performance of LDPC-COFDM is compared with convolution coded OFDM system over AWGN and multi-path channels.The simulation results show that the former has much stronger error correcting capability than the later. |
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| Keywords: | IEEE 802 16e LDPC code LDPC-COFDM |
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