Channel estimation method based on data assistance for cellular removal system

The invention discloses a channel estimation method based on data assistance for a cellular removal system, which is applied to the technical field of wireless communication and aims at solving the problem that the improvement on channel estimation is limited because only pilot frequency is used for acquiring channel state information in the prior art. The method comprises the following steps: firstly, establishing a system model, and deducing initial LMMSE channel estimation; secondly, deducing a data detection expression in a first stage of an iteration process; then, a data-assisted channel estimation expression in the second stage of the iterative process is derived. The method overcomes the defects that in the prior art, power consumption is high, only pilot frequency is used for obtaining channel state information, and improvement on channel estimation is limited, so that the method has high precision on channel estimation. 本发明公开一种用于去蜂窝系统的基于数据辅助的信道估计方法，应用于无线通信技术领域，针对现有技术中仅使用导频来获取信道状态信息，对信道估计的改进有限的问题；本发明