Research Article
Cross-System Resource Allocation Based on Random Matrix Theory
@INPROCEEDINGS{10.4108/valuetools.2007.2018, author={Samson Lasaulce and Alberto Su\^{a}rez and Raul de Lacerda and Merouane Debbah}, title={Cross-System Resource Allocation Based on Random Matrix Theory}, proceedings={2nd International ICST Conference on Performance Evaluation Methodologies and Tools}, proceedings_a={VALUETOOLS}, year={2010}, month={5}, keywords={Cross system optimization multiple access channel power allocation iterative water-filling heterogeneous networks.}, doi={10.4108/valuetools.2007.2018} }- Samson Lasaulce
Alberto Suárez
Raul de Lacerda
Merouane Debbah
Year: 2010
Cross-System Resource Allocation Based on Random Matrix Theory
VALUETOOLS
ICST
DOI: 10.4108/valuetools.2007.2018
Abstract
This paper investigates the situation where a (large) group of terminals can be connected simultaneously to several base stations using distinct wireless technologies. We introduce and solve the problem of optimally sharing the mobile transmit power between different systems. Key results from asymptotic random matrix theory (when the number of users and the dimensions of different systems increase) allow us to derive the best power allocation scheme in the sense of the sum-capacity of the overall system, for which the uplink is equivalent to a parallel fading multiple access channel. Moreover, we provide an iterative algorithm to solve the power allocation algorithm. Simulations for a finite number of users validate the asymptotic claims.
