Sum power iterative waterfilling for Gaussian vector broadcast channels
Sriram Vishwanath, Wonjong Rhee, Nihar Jindal, Syed A. Jafar, Andrea J. Goldsmith · 2003
An efficient algorithm for computing the sum capacity of vector broadcast channel is obtained in this paper. This algorithm utilizes the duality between broadcast and multiple access channels and the Kuhn-Tucker conditions of sum power multiple access channel.