Figure 11
From: Opportunistic Adaptive Transmission for Network Coding Using Nonbinary LDPC Codes
Comparison of the rates of two nodes belonging to a Network Coding group with 
= 2 nodes in both AIR and CIR systems. One of the nodes suffers from a higher path loss attenuation (10 dB) with respect to the other. Node with better channel in AIR system achieves higher rate with respect to node with better channel in CIR system. The gain arises from adapting the coding rate of each node to the channel independently from the other nodes.