Figure 3From: QoS-aware routing for heterogeneous layered unicast transmissions in wireless mesh networks with cooperative network codingThree basic local structures for the CNCE protocol. (a) The A-B structure, (b) the Y structure, and (c) the X structure. The dashed and regular arrows represent the overhearing and direct transmissions, respectively. To show the basic local structures used in the CNCE protocol. The dashed and regular arrows represent the overhearing and direct transmissions, respectively.Back to article page