Utility-Based Joint Routing, Network Coding, and Power Control for Wireless Ad Hoc Networks

Figure 2

Unicast path example: node 𝑠 sends a message to node 𝑑 over path 𝑄=⟨𝑠=𝑣₀,𝑣₁,𝑣₂,…,𝑣_𝐻−1,𝑣_𝐻=𝑑⟩.