Duplex mode selection and channel allocation for full-duplex cognitive femtocell networks

In this paper, we investigate the problem of incorporating full-duplex (FD) transmission in cognitivefemtocell networks (CFN) to achieve higher spectrum utilization. We aim to maximize the sum rate of a full-duplex cognitive femtocell network (FDCFN) as well as guaranteeing the quality of service (QoS) of users in the form of a required signal to interference plus noise ratios (SINR).

We propose a duplex mode selection strategy based on stable roommate matching, as well as a greedy channel allocation algorithm with a proven performance bound. Numerical results show that the proposed schemes effectively improve the sum rate of the FDCFN.

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