Abstract
The problem of joint multiuser beamforming and power control can be reduced to the search of the minimal-norm element over a set of polynomial roots. This problem belongs to the field of semi-algebraic geometry. In this paper we use semi-algebraic techniques to show that the optimal power allocation is unique.
| Original language | English |
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| Pages (from-to) | 352 |
| Number of pages | 1 |
| Journal | IEEE International Symposium on Information Theory - Proceedings |
| State | Published - 2004 |
| Externally published | Yes |
| Event | Proceedings - 2004 IEEE International Symposium on Information Theory - Chicago, IL, United States Duration: 27 Jun 2004 → 2 Jul 2004 |