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A Branch-and-Bound Method for Power Minimization of IDMA.
- Source :
- IEEE Transactions on Vehicular Technology; Nov2008, Vol. 57 Issue 6, p3525-3537, 13p, 4 Black and White Photographs, 2 Diagrams, 2 Charts, 3 Graphs
- Publication Year :
- 2008
-
Abstract
- This paper tackles a power minimization problem of interleave-division multiple-access (IDMA) systems over a fading multiple-access channel. The problem is minimizing the total power received by the receiver while keeping the bit error rates (BERs) of all users below a predefined value. The original formulation of the problem has highly nonlinear and implicitly defined functions, which render most existing optimization methods incapable. A new formulation is proposed in this paper, whose solution can effectively be obtained by a branch-and-bound (B&B) technique. An algorithm is devised based on B&B, and its effectiveness is also demonstrated by numerical experiments of systems with a moderate numbers of users. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189545
- Volume :
- 57
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Vehicular Technology
- Publication Type :
- Academic Journal
- Accession number :
- 35499488
- Full Text :
- https://doi.org/10.1109/TVT.2008.919617