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Content Provider | IET Digital Library |
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Author | Bao, Wei Zhang, Jianhua Zhang, Ping |
Abstract | In this study, the authors address the problem of transceiver design in an amplify-and-forward multiple-input multiple-output relay system with full or partial channel state information (CSI), where linear processing is applied to maximise the average received signal-to-noise ratio (SNR) at source, relay and destination, respectively. This joint design problem is a non-convex optimisation problem, so the authors convert it into a scalar problem and derive the optimal unitary decoder under average power constraint. The precoder at source and relay can be obtained by employing generalised Rayleigh quotient method. Specifically, two CSI assumptions are considered: (i) the authors first derive the precoder and decoder with full CSI; (ii) assumimg the statistical independence between the channel estimated value and channel estimation errors, the problem with partial CSI can be solved as the same way as full CSI case. Numerical results show a great improvement on the average received SNR by applying the proposed scheme. On the other hand, the authors also illustrate the impact on received SNR arose by the channel estimation errors. |
Starting Page | 903 |
Ending Page | 909 |
Page Count | 7 |
ISSN | 17518628 |
Volume Number | 7 |
e-ISSN | 17518636 |
Issue Number | Issue 9, Jun (2013) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-com/7/9 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-com.2012.0399 |
Journal | IET Communications |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Amplify-and-forward Multiple-input Multiple-output Relay System Average Power Constraint Channel Estimation Error Channel State Information Convex Programming CSI Joint Signal-to-noise Ratio Based Transceiver Design MIMO Communication Nonconvex Optimisation Problem Optimal Unitary Decoder Optimisation Technique Radio Link And Equipment Radio Transceivers Rayleigh Channel Rayleigh Quotient Method Relay Network Scalar Problem SNR Telecommunication Wireless Channel |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering Computer Science Applications |
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