在波束赋形系统模型和算法准则的基础上,给出一种相对传统特征值分解方法有一定简化的算法.该算法能够有效克服波束赋形过程中复杂度较大且会引起系统延迟的问题.根据TD-LTE系统物理层协议规定生成信号源并进行建模,通过搭建完整的赋形链路来获得波束赋形的加权系数.在多径衰落信道下,对传统的基于QR分解的特征值分解算法和简化算法进行仿真分析.结果表明:相同的仿真条件下,简化后的算法能够在保持一定精度的基础上,将把复杂度降低为原来的1/60.
参考文献
[1] | Liu Guangyi,Zhang Yong,Jiang Dajie,et al.The application of smart antenna in TD-LTE system[J].Telecommunications Science(电信科学),2009,25(12):67-71 (in Chinese). |
[2] | 3GPP Technical Specification 36.211,Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation (R8)[S].http://www.3gpp.com. |
[3] | Li Yuanwei,Chen Huimin,Niu Gang. The performance comparison of 6 path smart antenna with different beamforming algorithm[J].Computer & Telecommunication (电脑与电信),2008,7(5):60-61 (in Chinese). |
[4] | Qin Hongfeng,Zeng Zhaohua.Downlink beamforming in TD-SCDMA system[J].Radio Communication(无线通信),2004,7:6-9 (in Chinese). |
[5] | Wang Jing,Shi Gang,Li Juan.A beamforming algorithm for adaptive arrays[J].Telecommunication Engineering (电讯技术),2007,47(4):138-142 (in Chinese). |
[6] | Moon T K,Stirling W C.Mathematical Methods and Algorithms for Signal Processing[M].New Jersey:Prentice Hall,2000:305-307. |
[7] | Lal Chand Godara.Smart Antenna[M].New York:CRC Press,2004:175-178. |
[8] | Zhang Xianda.Matrix Analysis and Application(矩阵分析与应用)[M].Beijing:Tsinghua University Press,2004(in Chinese). |
[9] | Cao Wei,Fan Xun,et al. Performance analysis of downlink beamforming algorithms in TD-LTE system[J].Telecommunication Engineering (电讯技术),2010,50(8):36-40 (in Chinese). |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%