On Achievable Diversity Multiplexing Tradeoff in MIMO Nonorthogonal Amplify-and-Forward Cooperative Channel with Quantized Channel State Feedback

Xiaodong SUN; Shihua ZHU; Zhenjie FENG; Hui HUI

doi:10.1587/transcom.E95.B.3576

Regular Section

On Achievable Diversity Multiplexing Tradeoff in MIMO Nonorthogonal Amplify-and-Forward Cooperative Channel with Quantized Channel State Feedback

Xiaodong SUN, Shihua ZHU, Zhenjie FENG, Hui HUI

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Keywords: multiple-input multiple-output (MIMO), nonorthogonal amplify-and-forward (NAF), channel state feedback, power control, diversity-multiplexing tradeoff (DMT)

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2012 Volume E95.B Issue 11 Pages 3576-3579

DOI https://doi.org/10.1587/transcom.E95.B.3576

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Abstract

In this letter, we derive a lower bound on the diversity multiplexing tradeoff (DMT) in multiple-input multiple-output (MIMO) nonorthogonal amplify-and-forward (NAF) cooperative channels with resolution-constrained channel state feedback. It is shown that power control based on the feedback improves the DMT performance significantly in contrast to the no-feedback case. For instance, the maximum diversity increase is exponential in K with K-level feedback.

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