@inproceedings{paperid:1033798, author = {Abbasi, Mohsen and Khoshbin Ghomash, Hossein}, title = {Cooperative beamforming, power allocation and relay selection in MIMO cognitive radio systems}, booktitle = {2012 (Sixth International Symposium on Telecommunications with Emphasis on Information & Communicatio (IST2012}, year = {2012}, location = {تهران, IRAN}, keywords = {MIMO systems ; cooperative beamforming ; power allocation ; relay cognitive radio ; relay selection}, }