Yue Zhao 0007 Suhas N. Diggavi Andrea Goldsmith H. Vincent Poor Convex optimization for precoder design in MIMO interference networks. 1213-1219 2012 Allerton Conference https://doi.org/10.1109/Allerton.2012.6483356 conf/allerton/2012 db/conf/allerton/allerton2012.html#ZhaoDGP12