Figure 1
From: Partial joint processing with efficient backhauling using particle swarm optimization
An illustration of the feedback load comprising of the CSI coefficients from the UT to the BS. The backhaul load consists of the precoding weights from the CCN to the BS. The equivalence can be seen in the number of CSI coefficients, h1, h2, h3 and the number of precoding weights w1, w2, w3 for a given UT. The user data is assumed to be routed based on the non-zero precoding weights at the CCN.