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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gang Liu Hong Ji Yu, F.R. Yi Li Rui Wang |
| Copyright Year | 2014 |
| Description | Author affiliation: Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, ON, Canada (Yu, F.R.) || Key Lab. of Universal Wireless Comm., Beijing Univ. of Posts & Telecom, Beijing, China (Gang Liu; Hong Ji; Yi Li; Rui Wang) |
| Abstract | Recently, the optimal transceiver design in multi-user multiple-input-multiple-output (MIMO) relay systems has attracted great attention. Unlike most existing works, we take the channel correlation and estimation errors into account, and jointly optimize the relay and receiver matrix in multiuser MIMO relay systems. First, the mean-square error (MSE) expression at receiver is derived, and a minimum mean-square error (MMSE)-based optimization problem is formulated. Then, a Bi-step iterative algorithm is developed to search for the optimal numerical solution. Besides, in order to solve the original problem more efficiently, we further transform it to a sub-optimal problem that minimizes the upper bound of the MSE. Then, we propose a structurized algorithm, where the closed-form expressions of the sub-optimal relay matrix and receiver matrix are given. Finally, simulation results are presented to illustrate the effectiveness of the proposed algorithms. |
| Starting Page | 1182 |
| Ending Page | 1187 |
| File Size | 193219 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781479930838 |
| DOI | 10.1109/WCNC.2014.6952317 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-04-06 |
| Publisher Place | Turkey |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Relays Correlation MIMO Channel estimation Receivers Matrices Transceivers channel estimation errors Transceiver design multi-user MIMO relay MMSE channel correlation |
| Content Type | Text |
| Resource Type | Article |
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