Rate-limited transmitter-cooperation in Wyner´s asymmetric interference network

We study Wyner´s asymmetric interference network (soft-handoff model) when each transmitter has local, rate-limited side-information about the messages of the J transmitters to its left and the J transmitters to its right. We distinguish two scenarios. In Scenario A the neighbors of Transmitter k can have different, individual, side-information about Message M_k. In Scenario B they all have the same side-information about M_k. For both scenarios we derive the asymptotic multiplexing gain per-user, that is, the limiting ratio of the multiplexing gain divided by the number of users K when K → ∞.