TDMA - CDMA White Papers
Optimal Power Control for Multiuser CDMA Channels
Overview This paper defines the power region as the set of power allocations for K users such that everybody meets a minimum Signal-to-Interference Ratio (SIR). The SIR is modeled in a multiuser CDMA system with fixed linear receiver and signature sequences. It is shown that the power region is convex in linear and logarithmic scale. It furthermore has a componentwise minimal element. Power constraints are included by the intersection with the set of all viable power adjustments. In this framework, the aim is at minimizing the total expended power by minimizing a componentwise monotone functional. If the feasible power region is nonempty, the minimum is attained.
| Publisher | RWTH Aachen University | File Format | |
|---|---|---|---|
| Date Published | September 2005 | Downloads | 23 |
| Format | White Papers | ||
| Topics | |||
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