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| 可变速率预编码BLAST与特征波束形成组合方案 | |
| 引用本文： | 胡洁,谢显中,杨燕玲.可变速率预编码BLAST与特征波束形成组合方案[J].电子与信息学报,2008,30(12):2984-2986. |
| 作者姓名： | 胡洁 谢显中 杨燕玲 |
| 作者单位： | 1. 华南农业大学工程学院电子与电气工程系,广州,510642 2. 重庆邮电学院移动通信技术重庆市重点实验室,重庆,400065 3. 广东省电信规划设计院,广州,510630 |
| 基金项目： | 国家自然科学基金 ， 广东省高等院校学科建设专项资金(0041301020070505)资助课题 |
| 摘 要： | 传统的基于迫零(ZF)和最小均方误差(MMSE)算法的分层空时码(BLAST)接收机由于其较大的复杂度不适合在移动终端使用。该文的发射方案将传输预编码BLAST与特征波束成形相结合，利用信道协方差矩阵特征值分解得到的特征波束来承载空时分层码，并在目标BER约束下自适应调整速率。在下行链路发送端使用可变速率预编码BLAST与特征波束形成组合方案，大大简化了移动终端的接收机算法。 |
| 关 键 词： | BLAST 特征波束形成 预编码 注水定理 TDD |
| 收稿时间： | 2006-12-31 |
| 修稿时间： | 2008-10-6 |
A Transmit Processing Scheme Combined BLAST and Eigenbeamforming with Variable Rate Allocation |
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| Hu Jie,Xie Xian-zhong,Yang Yan-ling.A Transmit Processing Scheme Combined BLAST and Eigenbeamforming with Variable Rate Allocation[J].Journal of Electronics & Information Technology,2008,30(12):2984-2986. | |
| Authors: | Hu Jie Xie Xian-zhong Yang Yan-ling |
| Institution: | (Engineering College, South China Agriculture University, Guangzhou 510642, China) (Key Lab of Mobile Communications, Chongqing University of Posts and Telecommunications, Chongqing 400065, China) (Guangdong Planning and Designing Institute of Telecommunications Co.Ltd, Guangzhou 510630, China) |
| Abstract: | Conventional Bell-labs Layered Space Time (BLAST) receivers based on ZF or MMSE algorithm are of great complexity which can not be utilized in the mobile. This paper proposed a transmitter design which combined BLAST and eigenbeamforming with multiple beams pointing to orthogonal directions along the eigenvectors of the channel’s correlation matrix, and with variable rate allocation under certain bit error rate requirement. In this technique, layered space–time pre-processing at the transmitter with a simplified receiver at the mobile station requires only simple signal processing. |
| Keywords: | BLAST TDD |
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