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CORR
2008
Springer

Rate and Power Allocation in Fading Multiple Access Channels

10 years 2 months ago
Rate and Power Allocation in Fading Multiple Access Channels
Abstract-- We consider the problem of rate and power allocation in a fading multiple-access channel. Our objective is to obtain rate and power allocation policies that maximize a utility function defined over average transmission rates. In contrast with the literature, which focuses on the linear case, we present results for general concave utility functions. We consider two cases. In the first case, we assume that power control is possible and channel statistics are known. In this case, we show that the optimal policies can be obtained greedily by maximizing a linear utility function at each channel state. In the second case, we assume that power control is not possible and channel statistics are not available. In this case, we define a greedy rate allocation policy and provide upper bounds on the performance difference between the optimal and the greedy policy. Our bounds highlight the dependence of the performance difference on the channel variations and the structure of the utility...
Ali ParandehGheibi, Atilla Eryilmaz, Asuman E. Ozd
Added 09 Dec 2010
Updated 09 Dec 2010
Type Journal
Year 2008
Where CORR
Authors Ali ParandehGheibi, Atilla Eryilmaz, Asuman E. Ozdaglar, Muriel Médard
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