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| 空频分组编码OFDM系统迭代解码算法 | |
| 引用本文： | 陆震,王勇,葛建华.空频分组编码OFDM系统迭代解码算法[J].吉林大学学报(工学版),2007,37(2):474-478. |
| 作者姓名： | 陆震 王勇 葛建华 |
| 作者单位： | 1. 上海交通大学电子信息与电气工程学院,上海,200240 2. 西安电子科技大学通信工程学院,西安,710071 3. 上海交通大学电子信息与电气工程学院,上海200240;西安电子科技大学通信工程学院,西安710071 |
| 摘 要： | 根据OFDM系统子信道的相关性,为空频分组编码(SFBC)OFDM系统提出了一种简单的解码算法。该算法只需要少量的导频就可以估计信道并解码,当传输模式是QPSK时甚至无需信道估计。仿真结果表明:该算法与差分解码相似,虽然与相干解码比较有3 dB的性能损失,但是仍然能够得到分集增益,并且计算复杂度大大降低。 |
| 关 键 词： | 通信技术 空频分组编码 正交频分复用 发射分集 迭代解码 |
| 文章编号： | 1671-5497（2007）02-0474-05 |
| 收稿时间： | 2006-03-27 |
| 修稿时间： | 2006年3月27日 |
Iterative decoding of space frequency block code OFDM systems |
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| Lu Zhen,Wang Yong,Ge Jian-hua.Iterative decoding of space frequency block code OFDM systems[J].Journal of Jilin University:Eng and Technol Ed,2007,37(2):474-478. | |
| Authors: | Lu Zhen Wang Yong Ge Jian-hua |
| Affiliation: | 1 School of Elootrioal Infommotion and Elootriaol Enoinoorino Shanohai Jiao Tang Univaroity,Shanghai 200240 China 2. School of Communication Engineering, Xidian University, Xitan 710071, China |
| Abstract: | A simple decoding algorithm for SFBC-OFDM system was proposed on the basis of channel correlation in OFDM systems.The proposed algorithm only needs a few pilots to estimate channel and decode,and it requires no channel estimation when QPSK modulation was used.The simulation results demonstrate that the presented algorithm is similar to differential detection scheme,and has only 3 dB penalty when compared with coherent detection method,however,the diversity gain can be obtained and computation complexity is obviously reduced. |
| Keywords: | communication space frequency block coding orthogonal frequency division multiplexing transmit diversity iterative decoding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |