Effects of Finite Coefficient Word Length on Channel Estimator Performance

摘要：

In this paper we investigate the impact of finite coefficient word length on channel estimator performance.A theoretical analysis of the increase in channel estimation error due to quantization of estimator coefficients is performed,and by using simulation results,the behavior of this error in different fading environments and for different filter orders is studied.Comparing the simulated results with a theoretical model we have shown that there is a relatively good agreement between results based on the theoretical model and the simulated results.We have shown that there is a closer match between theoretical and simulated results when the input signal is less correlated.Our model is restricted to a flat-fading channel with varying Doppler,and linear FIR estimators.

作者: Asghar Havashki Lars Lundheim Per Gunnar Kjeldsberg Geir E.(O)ien

作者单位: Department of Electronics and Telecommunications Norwegian University of Science and Technology NO-7491,Trondheim,Norway

会议类型: 国际会议

会议名称: 9th International Conference on Signal Processing(第九届国际信号处理学术会议)(ICSP08)

会议地点: 北京

会议语种:英文

在线出版日期: 2008-10-26（万方平台首次上网日期，不代表论文的发表时间）