Efficient Channel Estimation Algorithm for Two-Way MIMO Relay Systems
- Resource Type
- Conference
- Authors
- Du, Jianhe; Ye, Siyu; Wang, Chentao; Chang, Rui; Chen, Yuanzhi
- Source
- 2018 IEEE 18th International Conference on Communication Technology (ICCT) Communication Technology (ICCT), 2018 IEEE 18th International Conference on. :204-208 Oct, 2018
- Subject
- Communication, Networking and Broadcast Technologies
Relays
Channel estimation
MIMO communication
Training
Complexity theory
joint channel estimation
relay
Tucker-2 model
iterative algorithm
- Language
- ISSN
- 2576-7828
To solve the problem of joint channel estimation for two-way multiple-input multiple-output (MIMO) relay systems, we propose a low complexity algorithm in this paper. At each user, the proposed channel estimation algorithm uses a unified formulation of the received signal as a Tucker-2 model. A joint channel estimation process is derived out by resorting to the proposed low complexity iterative algorithm. The proposed algorithm can provide each user with full knowledge of all channel matrices in the considering communication system. Moreover, the proposed algorithm can estimate channel effectively even when the channel becomes strongly correlated. Simulation results demonstrate the effectiveness of the proposed algorithm.