  Characterization and modeling of co-channel interference is critical for the
design and performance evaluation of realistic multi-cell cellular networks. In
this paper, based on alpha stable processes, an analytical co-channel
interference model is proposed for multi-cell multiple-input multi-output
(MIMO) cellular networks. The impact of different channel parameters on the new
interference model is analyzed numerically. Furthermore, the exact normalized
downlink average capacity is derived for a multi-cell MIMO cellular network
with co-channel interference. Moreover, the closed-form normalized downlink
average capacity is derived for cell-edge users in the multi-cell
multiple-input single-output (MISO) cooperative cellular network with
co-channel interference. From the new co-channel interference model and
capacity, the impact of cooperative antennas and base stations on cell-edge
user performance in the multi-cell multi-antenna cellular network is
investigated by numerical methods. Numerical results show that cooperative
transmission can improve the capacity performance of multi-cell multi-antenna
cooperative cellular networks, especially in a scenario with a high density of
interfering base stations. The capacity performance gain is degraded with the
increased number of cooperative antennas or base stations.
