| WCDMA下行链路一种加权的信道估计方法 |
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| 引用本文： | 盛彬,尤肖虎. WCDMA下行链路一种加权的信道估计方法[J]. 电路与系统学报, 2003, 8(5): 5-9 |
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| 作者姓名： | 盛彬 尤肖虎 |
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| 作者单位： | 东南大学,移动通信国家重点实验室,江苏,南京,210096 |
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| 基金项目： | 江苏东大通信技术有限责任公司基金资助项目(SeuComm) |
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| 摘 要： | 本文针对第三代移动通信标准WCDMA(FDD)下行链路的结构，提出了一种新的利用公共导频信道和专用数据信道中的导频符号进行加权的信道估计方法。仿真表明本方案有效地提高了信道参数估计的准确度，使Rake接收机的性能比传统的只利用公共导频信道进行信道估计的方案有了一定的改善，特别是在公共导频信道受到明显衰落时。
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| 关 键 词： | 宽带码分多址 信道估计 改进的线性插值算法 |
| 文章编号： | 1007-0249(2003)05-0005-05 |
| 修稿时间： | 2002-09-03 |
A Novel Weighted Channel Estimation Scheme for WCDMA Downlink |
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| SHENG Bin,YOU Xiao-hu. A Novel Weighted Channel Estimation Scheme for WCDMA Downlink[J]. Journal of Circuits and Systems, 2003, 8(5): 5-9 |
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| Authors: | SHENG Bin YOU Xiao-hu |
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| Abstract: | A novel weighted estimation scheme for WCDMA (FDD) Downlink channel is proposed where a common pilot channel is simultaneously transmitted with dada traffic channels. According to the proposed scheme, channel information is exploited from both CPICH (common pilot channel) and DPCCH (dedicated physical control channel) by combining channel estimates from these two channels. Computer simulation results show that using the proposed scheme, the accuracy of channel estimation is enhanced compared to the traditional method using only CPICH, and the performance of the Rake receiver is improved effectively, especially when the CPICH is in deep fade. |
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| Keywords: | WCDMA Channel Estimation Enhanced Linear Interpolation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
