Capacity Limits of Full-Duplex Cellular Network

This paper aims to characterize the capacity limits of a wireless cellular network with full-duplex (FD) base-station (BS) and half-duplex user terminals, in which three independent messages are communicated: uplink message $m_1$ from BS, downlink $m_2$ BS user, device-to-device (D2D) $m_3$ user. From an information theoretical perspective, overall can be viewed as generalization FD relay broadcast channel side transmitted destination. We begin simpler case that involves transmissions $(m_1,m_2)$ only, propose achievable rate region based on novel strategy uses facilitate interference cancellation at also prove new converse, is strictly tighter than cut-set bound, scalar Gaussian without D2D within constant gap. further studies general setup wherein $(m_1,m_2,m_3)$ communicated simultaneously. To account for message, we incorporate Marton's coding into previous scheme obtain larger existing ones literature. improve bound by means genie show using one two simple rate-splitting schemes, already reached Finally, vector discussed. Simulation results demonstrate advantage enhancing throughput network.