An UKF-based Channel-Tracking Scheme with Relay-Superimposed Pilots for One-Way Relay Networks

作者：Zhang, Jing^*; Zhang, Shun; Li, Hongyan; Ma, Jianpeng

来源：2014 IEEE/CIC International Conference on Communications in China - Workshops (CIC/ICCC), 2014-10-13 To 2014-10-15.

DOI：10.1109/iccchina.2014.7008338

In this paper, we examine the channel estimation problem for one-way relay network(OWRN) under time-selective fading channel scenario. Our aim is to estimate the individual channels of each relay hop at the destination with unknown data from source. We utilize the relay's aided estimation function through superimposing pilots at relay, adopt the autoregressive (AR) model to characterize the time-varying individual channels, and construct the nonlinear dynamic state space for the individual channels. Furthermore, one low-complex data-decision directed UKF is designed to implement online time-varying individual channel tracking. Finally, simulation results will be provided to corroborate our proposed studies.

• 出版日期2014
• 单位西安电子科技大学; 综合业务网理论及关键技术国家重点实验室