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基于IEEE 802.16e标准的LDPC-COFDM无线通信系统

LDPC-COFDM Wireless Communication System Based on IEEE 802.16e Standard
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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. 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 constructd. 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.
作者 赵旦峰 张杰 杨泽亮
机构地区 哈尔滨工程大学信息与通信工程学院
出处 《佳木斯大学学报（自然科学版）》 CAS 2008年第4期441-443,452,共4页 Journal of Jiamusi University：Natural Science Edition
基金 "十一.五"预研项目
关键词 IEEE802.16E LDPC码 LDPC-COFDM IEEE 802.16e LDPC code LDPC - COFDM
分类号 TN911.22 [电子电信—通信与信息系统]
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参考文献8

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二级参考文献7

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佳木斯大学学报（自然科学版）
2008年 第4期

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