A Tucker-2 Model Based Channel Estimation Technique in AF MIMO Relay Systems
| Autor: | Chentao Wang, Jianhe Du, Yijun Wu, Qiaoqian Hu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Computer science
Relay systems ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS 010401 analytical chemistry MIMO 020206 networking & telecommunications Data_CODINGANDINFORMATIONTHEORY 02 engineering and technology 01 natural sciences 0104 chemical sciences law.invention Relay law Alternating least squares Computer Science::Networking and Internet Architecture 0202 electrical engineering electronic engineering information engineering Mimo relay Algorithm Computer Science::Information Theory Coding (social sciences) |
| Zdroj: | Proceedings of the 2017 2nd International Conference on Communication and Information Systems. |
| DOI: | 10.1145/3158233.3159330 |
| Popis: | For multiple-input multiple-output (MIMO) relay systems, we present a Tucker-2 model based scheme for channel estimation. The channel training sequences at the source node are transmitted to the relay node for three-way space-time coding. Then the received signals at the destination node are formulated as a Tucker-2 model, and the source-relay and relay-destination channel matrixes can be estimated by alternating least squares (ALS) algorithm to fit this mode. At the same time, the feasibility of the proposed approach is analyzed in detail. The proposed scheme can preferably estimate the source-relay and relay-destination channel matrixes. Moreover, the estimation accuracies of source-relay and relay-destination channel are not interacted. Simulation results indicate the effectiveness of the proposed scheme. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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