This work studies the capacity region of a two-user ergodic interference
channel with fading, where only one of the users is subject to interference
from the other user, and the channel state information (CSI) is only available
at the receivers. A layered erasure model with one-sided interference and with
arbitrary fading statistics is studied first, whose capacity region is
completely determined as a polygon. Each dominant rate pair can be regarded as
the outcome of a trade-off between the rate gain of the interference-free user
and the rate loss of the other user due to interference.

Channel uncertainty and co-channel interference are two major challenges in
the design of wireless systems such as future generation cellular networks.
This paper studies receiver design for a wireless channel model with both
time-varying Rayleigh fading and strong co-channel interference of similar form
as the desired signal. It is assumed that the channel coefficients of the
desired signal can be estimated through the use of pilots, whereas no pilot for
the interference signal is available, as is the case in many practical wireless
systems.

This paper studies two-user MIMO interference channel with isotropic fading.
We assume that users are equipped with arbitrary number of antennas and the
channel state information (CSI) is available at receivers only. An outer bound
is obtained for the degree of freedom region, which suggests the loss of
degrees of freedom due to the lack of CSI at transmitters under many
circumstances.