• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>2015 Global Conference on Communication Technologies >Optimal pilot-aided semi blind channel estimation for MIMO-OFDM system
【24h】

Optimal pilot-aided semi blind channel estimation for MIMO-OFDM system

机译：MIMO-OFDM系统的最优导频辅助半盲信道估计

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The purpose of this paper is to introduce a semi-blind channel estimation approach for MIMO-OFDM Systems. The proposed method is a combination of pilot and blind channel estimations on Independent Data Blocks (IDB). First, the Pilots are used to find the channel characteristics. By taking the average of subsequent pilot responses we pre-estimating the channel, and then with this pre-estimated channel characteristics data is decoded at the receiver section. In this paper instead of conventional orthogonal pilots proposed optimal pilots and instead of full data block channel estimation half data block channel is estimated using previous and present pilots and next half of data channel characteristics is estimated with interpolating present and future pilots channel, the proposed pattern, method will reduces the MSE as compared to existing conventional one. Simulation results show that the proposed method achieves higher accuracy (MSE reduced) and complexity reduced (compared to blind estimation method).
机译：本文的目的是介绍一种用于MIMO-OFDM系统的半盲信道估计方法。所提出的方法是对独立数据块（IDB）进行导频和盲信道估计的组合。首先，先导用于查找信道特性。通过取后续导频响应的平均值，我们可以对信道进行预估计，然后使用该预估计的信道特性在接收机部分对数据进行解码。在本文中，不是使用传统的正交导频，而是建议的最佳导频，而不是使用完整的数据块信道估计，而是使用先前和当前的导频来估计一半的数据块信道，并通过对当前和将来的导频信道进行插值来估计数据信道特性的下一半。与现有的传统方法相比，该方法将减少MSE。仿真结果表明，与盲估计方法相比，该方法具有较高的精度（降低了MSE）和降低了复杂度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号