Figure 4
From: Joint source and relay design for two-hop amplify-and-forward relay networks with QoS constraints
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1687-1499-2013-108/MediaObjects/13638_2012_Article_689_Fig4_HTML.jpg)
Performance with equal QoS constraint.
From: Joint source and relay design for two-hop amplify-and-forward relay networks with QoS constraints
Performance with equal QoS constraint.