Two-way coding for interference-limited regime — Algorithms and feedback strategies in MISO interference channels

Mobile networks are experiencing heterogeneity and intricacy by the avalanche of data traffic, which bring about the possibility of performance degradation by strong interference problems. In order to overcome the limitation of mitigating/eliminating strong interferences, some recent researches have focused on harnessing interferences using advanced coding techniques such as network coding. Two-way coding (TWC), especially on interference channels, is one novel idea for directly harnessing interferences by data-detouring and coupling several hops even though previous results were theoretical. In this context, we propose TWC techniques with respect to their implementation, and verify potential performances when the interference links are prominently strong. TWC techniques have crucial performance gains by not only exploiting good (interference) link qualities for detouring desired information but also removing undesired information using pre-owned data, namely, side-information. Furthermore, we exemplify channel state information (CSI) feedback strategies to realize TWC regarding the transceivers constructed by coupling successive hops.