| 准正交空时分组码自适应设计方案与性能分析 |
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| 引用本文： | 李卓越,龙飞,李鑫超. 准正交空时分组码自适应设计方案与性能分析[J]. 济南大学学报(自然科学版), 2012, 26(1): 27-30 |
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| 作者姓名： | 李卓越 龙飞 李鑫超 |
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| 作者单位： | 1. 贵州大学计算机科学与信息学院,贵州贵阳,550025
2. 山东大学信息科学与工程学院,山东济南,250014 |
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| 基金项目： | 国家自然科学基金，中国科学院"西部之光"人才计划，贵州省科学基金 |
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| 摘 要： | 准正交空时分组码园其牺牲部分正交性来换取全速率而无法实现全分集,在巳知信道状态信息的前提下,为最大限度降低数据符号彼此干扰,争取获得最大分集,提出两种准正交空时编码的自适应设计方案,并对其性能进行理论分析与比较,结果显示:两种自适应方案都能大大减小误码率；和增加自适应因子的方案相比,与波束形成技术相结合的自适应设计方案性能更为出色,但其增加了运算复杂度.
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| 关 键 词： | 准正交空时编码 自适应设计 波束形成 最大似然译码 |
Analysis and Performance Comparison of QOSTBC Adaptive Designs |
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| LI Zhuo-yue,LONG Fei,LI Xin-chao. Analysis and Performance Comparison of QOSTBC Adaptive Designs[J]. Journal of Jinan University(Science & Technology), 2012, 26(1): 27-30 |
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| Authors: | LI Zhuo-yue LONG Fei LI Xin-chao |
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| Affiliation: | 1.College of Computer Science and Information,Guizhou University,Guiyang 550025,China; 2.School of Information Science and Engineering,Shandong University,Jinan 250014,China) |
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| Abstract: | QOSTBC system can not achieve full diversity,because the system uses some orthogonality in exchange for full rate.Under the channel state information is known,in order to try best to minimize interfering and strive for maximum diversity,we propose two QOSTBC adaptive designs.Through analysis and comparing the performance,the two adaptive designs can greatly reduce the error rate,and the performance of the second design scheme is better than the first,but the second increases computational complexity. |
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| Keywords: | quasi-orthogonal space-time block code(QOSTBC) adaptive design beam forming maximum likelihood |
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