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2018-10-18

Two-Stage Channel Estimation Assisted by Correlation Exploitation for Amplify and Forward Relay Networks with Multiple Transmit and Receive Antennas

By Changwei Lv, Junwei Duan, and Zhaocheng Yang
Progress In Electromagnetics Research M, Vol. 75, 13-20, 2018
doi:10.2528/PIERM18080301

Abstract

This paper proposes a new two-stage channel estimation (TSCE) method to estimate the cascaded channels in amplify-and-forward (AF) one-way relay network (OWRN) with multiple transmit and receive antennas. Different from the existing estimation methods, the proposed TSCE estimates the cascaded channel matrix by utilizing the special structure of the received signal in the destination and by exploiting the correlations among the cascaded channel matrix entries. The TSCE not only obtains the channel state information (CSI) when receiving training sequences, but also improves the accuracy of CSI when receiving the data sequences. Simulation results demonstrate that the proposed TSCE can improve estimation accuracy compared with traditional channel estimation schemes.

Citation


Changwei Lv, Junwei Duan, and Zhaocheng Yang, "Two-Stage Channel Estimation Assisted by Correlation Exploitation for Amplify and Forward Relay Networks with Multiple Transmit and Receive Antennas," Progress In Electromagnetics Research M, Vol. 75, 13-20, 2018.
doi:10.2528/PIERM18080301
http://www.jpier.org/PIERM/pier.php?paper=18080301

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