Achievable rate region of frequency-division-duplex cascaded wireless networks with single source and two destinations

This paper investigates the rate region of K-hop frequency half-duplex cascaded wireless relay networks with single source and two unicast destinations. We consider two scenarios: 1) directed transmission; 2) undirected transmission. Based on our previous work, we gradually develop a framework to analyze the achievable rate region problem. Some basic and important concepts are defined to show the fundamental characteristics of cascaded network. Performance evaluation is provided by showing the rate region of an example network, which verifies the correctness of our theoretical analysis.