I have been trying to write a section on MIMO for a while. Wow what a difficult subject this is to tackle. There are so many issues, despite having read nearly every book on the topic, I still can not decide how to organize the chapter. Calculation of capacity is a big issue. But for that we have: ergodic channel, channel with outage, we have fading channels, with slow frequency selective, slow non-frequency selective, fast and selective and fast and non. Then there are channel with some correlation and channels that are random. Then there is space-time coding, and multi user MIMO and it keeps going. Fascinating subject but also messy. Hope I can do it justice.
There are some graphs in the Proakis book in the MIMO chapter that I would like to reproduce, by replotting. But the equations are complicated, with gamma functions and derivatives of gamma functions. One person must have done these long time ago and now every one copies the same pictures. Maybe I will end up doing the same thing. But I hope not. Plan on finishing the MIMO chapter by end of December.
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