EM-Based Estimation of Doubly Selective Channel with a Basis Expansion Model

摘要：

An expectation-maximization (EM)-based estimator for doubly selective channel parameterized by basis expansionmodel (BEM) is proposed, which converts the problem of estimating a multipath channel to parallel channel estimations. The convergence property of the algorithm has been carefully investigated, which shows that global convergence is always guaranteed. A novel initialization strategy is proposed to ac-celerate convergence speed and reduce computational cost, the effectiveness of which is demonstrated through simulations.

作者: Feng Yang Jian Song Changyong Pan Zhixing Yang

作者单位: Department of Electronic Engineering Tsinghua National Laboratory for Information Science and Technology (TNLIST) Tsinghua University, Beijing 100084, PR China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）