%A Xuan Thang Vu
%A Anh Vu Trinh
%A Tony QS Quek
%J IEEE Wireless Communications Letters
%T Successive pilot contamination elimination in multiantenna multicell networks
%X This paper addresses the problem of channel estimation in time-division duplex (TDD) multicell cellular systems, where the performance of such systems is usually bounded by a bottleneck due to pilot contamination. We propose two channel estimation schemes that completely remove pilot contamination. The exact closed-form expression for average mean square error (MSE) of the proposed estimators is derived. More importantly, our proposed estimators do not need to know the second-order statistics of either desired user channels or interfering user channels. Finally, simulated results confirm gains over existing channel estimation schemes.
%N 6
%P 617-620
%V 3
%D 2014
%I IEEE
%L SisLab1709