Computer Science – Information Theory
Scientific paper
2010-11-20
Computer Science
Information Theory
Scientific paper
We consider wireless networks that can be modeled by multiple access channels in which all the terminals are equipped with multiple antennas. The propagation model used to account for the effects of transmit and receive antenna correlations is the unitary-invariant-unitary model, which is one of the most general models available in the literature. In this context, we introduce and analyze two resource allocation games. In both games, the mobile stations selfishly choose their power allocation policies in order to maximize their individual uplink transmission rates; in particular they can ignore some specified centralized policies. In the first game considered, the base station implements successive interference cancellation (SIC) and each mobile station chooses his best space-time power allocation scheme; here, a coordination mechanism is used to indicate to the users the order in which the receiver applies SIC. In the second framework, the base station is assumed to implement single-user decoding. For these two games a thorough analysis of the Nash equilibrium is provided: the existence and uniqueness issues are addressed; the corresponding power allocation policies are determined by exploiting random matrix theory; the sum-rate efficiency of the equilibrium is studied analytically in the low and high signal-to-noise ratio regimes and by simulations in more typical scenarios. Simulations show that, in particular, the sum-rate efficiency is high for the type of systems investigated and the performance loss due to the use of the proposed suboptimum coordination mechanism is very small.
Belmega Elena Veronica
Debbah Merouane
Dumont Jacques
Jungers M.
Lasaulce Samson
No associations
LandOfFree
Power Allocation Games in Wireless Networks of Multi-antenna Terminals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Power Allocation Games in Wireless Networks of Multi-antenna Terminals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power Allocation Games in Wireless Networks of Multi-antenna Terminals will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-21967