Research Article
The Precoder Design with Covariance Feedback for Simultaneous Information and Energy Transmission Systems
Table 2
Computational complexity to compute the precoder.
| Precoding method | Complexity |
| The proposed first method | . |
| The proposed second method | |
| isotropic transmission | No need to compute |
| the precoder with hybrid CSI feedback [31] | |
| time switching method | |
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