Our conducted experiments corroborated that FD is not always the optimal operation mode when considering an FD- enabled wireless network. The optimal mode of a link depends on (i) the external interference it encounters from neighboring links (which is a function of their transmission powers and channel gains) and (ii) its residual self-interference (which is a function of its SIC capability, its transmission power, and its channel gain). Given that the external interference will not be known a priori, a link relies on the probability distribution over the types of the other link in deriving its strategy. Our simulations demonstrated the impact of the resid- ual self-interference and external interference on the received constellation diagram, and hence the BER. Specifically, as both interference types increase, the variance in the received constellation points increases.
As future research, we plan to extend the proposed Bayesian game into more than two links, where each link does not know the exact SIC capabilities of the neighboring links. We will also investigate a power control scheme to be used as part of the game, in addition to FD/HD mode selection.