Walid Hachem Oleksiy Khorunzhiy Philippe Loubaton Jamal Najim Leonid Pastur A New Approach for Capacity Analysis of Large Dimensional Multi-Antenna Channels http://arxiv.org/abs/cs/0612076 2006 CoRR abs/cs/0612076 db/journals/corr/corr0612.html#abs-cs-0612076 informal publication