New optimized solution method for beamforming in cognitive multicast transmission

Publication Type:
Conference Proceeding
Citation:
IEEE Vehicular Technology Conference, 2010
Issue Date:
2010-12-01
Metrics:
Full metadata record
Files in This Item:
Filename Description Size
Thumbnail2010003586OK.pdf155.21 kB
Adobe PDF
The optimal beamforming for cognitive multicast transmission is a nonconvex rank-one constrained optimization problem. For a solution, a popular method is the combination of relaxed convex semi-definite programming, where the rank-one constraint is dropped, and randomization. We show that in many cases, this method cannot give satisfactory solutions. As an initial step, we propose a simple and efficient alternative method, which offers much better solutions. Several numerical simulation examples are provided to illustrate the effectiveness of our method. ©2010 IEEE.
Please use this identifier to cite or link to this item: