  Motivated by increasing popularity of delay sensitive applications, we
investigate the queue stability in device-to-device (D2D) relay-assisted
cellular networks. In contrast to prior works on D2D relay-assisted cellular
networks, we incorporate practical properties of these networks such as bursty
packet arrivals, user mobility and relays generating their own traffic.
Assuming network topology evolving in IID fashion, we first evaluate the system
stability region to quantify its delay performance. Subsequently, we formulate
a policy for joint resource allocation and power control under a more realistic
mobility scenario of generalized reflected random walk. Also, the throughput
optimality of this policy is investigated. Simulation results are provided to
give better understanding of queue stability in the network.
