Modelling and Qos-Achieving Solution in Full-Duplex Cellular Systems
Modelling and Qos-Achieving Solution in Full-Duplex Cellular Systems is a scholarly work, published in 2018 in ''International journal of Computer Networks and Communications''. The main subjects of the publication include 5G, computer network, quality of service, power control, duplex, and computer science. The global bandwidth scarcity and the ever-growing demand for fast wireless services have motivated the quest for new techniques that enhance the spectral efficiency (SE) of wireless systems.Most conventional SE increasing methods (e.g., adaptive modulation and coding) have already been exhausted.Single-channel full-duplex (SCFD) communication is a new attractive approach in which each node may simultaneously receive and transmit over the same frequency channel, and thus, it has the potential to double the current SE figures.In this paper, authors derive a model for the signal-to-interference-plus-noise ratio (SINR) in a SCFD-based cellular system with imperfect self-interference cancellation.Furthermore, given a set of uplink and downlink quality of service requirements, authors answer the following two fundamental questions.First, is this set achievable in the SCFD-based cellular system?Second, if the given set is achievable, what is the optimal achieving policy?To that end, authors provide a unified model for the SCFD-based cellular system, and give insights in the matrix of interference channel gains.Simulation results suggest that depending on the locations of the users, a combination of full-duplex and half-duplex modes over the whole network is more favourable policy.