DISTRIBUTED RESOURCE ALLOCATION IN MIMO OFDMA NETWORKS WITH STATISTICAL CSIT

被引：0

作者：

Pischella, Mylene ^{[1
]}

Belfiore, Jean-Claude ^{[2
]}

机构：

[1] France Telecom, R&D Div, Issy Les Moulineaux, France

[2] ENST, Dept Comelec, Paris, France

来源：

SPAWC: 2009 IEEE 10TH WORKSHOP ON SIGNAL PROCESSING ADVANCES IN WIRELESS COMMUNICATIONS | 2009年

关键词：

POWER-CONTROL; SYSTEMS;

D O I：

10.1109/SPAWC.2009.5161760

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper addresses the Margin Adaptive (MA) problem in MIMO OFDMA multi-cell networks, when the transmitter only has statistical Channel State Information. Resource allocation is distributed within each Base Station. A distributed convergence criterion for power control is determined and included within iterative power allocation. An approximate analytical expression is obtained for the outage capacity, as a function of the SNR and of the outage probability. It turns the MA problem into a convex optimization problem, and is valid at practical SNR and outage capacity values, for several antenna configurations. The proposed method avoids power divergence situations at any load, and is consequently more efficient than iterative water-filling to solve the MA problem.

引用

页码：126 / +

页数：2

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