Flexible duplex is proposed to adapt to the channel and traffic asymmetry forfuture wireless networks. In this paper, we propose two novel algorithms withinthe flexible duplex framework for joint uplink and downlink resource allocationin multi-cell scenario, named SAFP and RMDI, based on the awareness ofinterference coupling among wireless links. Numerical results show significantperformance gain over the baseline system with fixed uplink/downlink resourceconfiguration, and over the dynamic TDD scheme that independently adapts theconfiguration to time-varying traffic volume in each cell. The proposedalgorithms achieve two-fold increase when compared with the baseline scheme,measured by the worst-case quality of service satisfaction level, under a lowlevel of traffic asymmetry. The gain is more significant when the traffic ishighly asymmetric, as it achieves three-fold increase.
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