Outage capacity of maximum ratio transmission based multicellular MIMO systems with power control

We analyze the performance of multicellular MIMO systems in flat Rayleigh fading. The channel model includes lognormal shadowing and path loss along with power control, resulting in a statistical model for user powers. Consistent with practical scenarios, the cochannel interference is categorized into two groups: intracell interference from users within the same cell as the desired user and intercell interference from outer cell users. We derive a compact, easily computable closed form outage probability expression in the form of finite sums. This expression allows for simpler and faster analysis of various MIMO configurations. It has been shown that using antennas on the receiver side results in better performance since transmit diversity does not combat interference from same cell users.