New outer bounds for the interference channel with unilateral source cooperation

Martina Cardone, Daniela Tuninetti, Raymond Knopp, Umer Salim
2014 2014 IEEE International Symposium on Information Theory  
This paper studies the two-user interference channel with unilateral source cooperation, which consists of two source-destination pairs that share the same channel and where one full-duplex source can overhear the other source through a noisy in-band link. Novel outer bounds of the type 2Rp+Rc/Rp+2Rc are developed for the class of injective semi-deterministic channels with independent noises at the different source-destination pairs. The bounds are then specialized to the Gaussian noise case.
more » ... teresting insights are provided about when these types of bounds are active, or in other words, when unilateral cooperation is too weak and leaves "holes" in the system resources.
doi:10.1109/isit.2014.6875068 dblp:conf/isit/CardoneTKS14 fatcat:eeakgfe3fjavddtqljlswlrvv4