Title :
The generalized degrees of freedom of the interference relay channel with strong interference
Author :
Gherekhloo, Soheil ; Chaaban, Anas ; Sezgin, Aydin
Author_Institution :
Commun. Syst., RUB, Bochum, Germany
Abstract :
The interference relay channel (IRC) under strong interference is considered. A high-signal-to-noise ratio (SNR) generalized degrees of freedom (GDoF) characterization of the capacity is obtained. To this end, a new GDoF upper bound is derived based on a genie-aided approach. The achievability of the GDoF is based on cooperative interference neutralization. It turns out that the relay increases the GDoF even if the relay-destination link is weak. Moreover, in contrast to the standard interference channel, the GDoF is not a monotonically increasing function of the interference strength in the strong interference regime.
Keywords :
cooperative communication; radiofrequency interference; relay networks (telecommunication); cooperative interference neutralization; generalized degrees of freedom; genie aided technique; interference relay channel; relay destination link; signal-to-noise ratio GDoF; strong interference; Decoding; Interference; Lattices; Receivers;
Conference_Titel :
Communication, Control, and Computing (Allerton), 2013 51st Annual Allerton Conference on
Conference_Location :
Monticello, IL
Print_ISBN :
978-1-4799-3409-6
DOI :
10.1109/Allerton.2013.6736679
