Abstract
This paper investigates the feasibility of a radio access system with a self-backhauling access node under full-duplex and half-duplex operation modes. In particular, after making certain simplifying assumptions, closed-form solutions for the feasibility conditions of such a radio access system are derived for both of the considered operation modes. Furthermore, the analysis incorporates given quality of service (QoS) constraints for the system, defined in terms of minimum data rates. The numerical results show that the full-duplex scheme outperforms the corresponding half-duplex scheme under most circumstances, both in terms of the highest achievable rates and the highest tolerable path losses, when given the same QoS target. However, this requires a certain amount of self-interference attenuation in the access node. Performing a similar feasibility analysis without any simplifications in the system model is an important future work item.
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