Joint Subcarrier and Power Allocation in OFDMA Systems for Outage Minimization

被引：6

作者：

Basaran, Semiha Tedik ^{[1
]}

Kurt, Gunes Karabulut ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Elect & Commun Engn, TR-34469 Istanbul, Turkey

来源：

IEEE COMMUNICATIONS LETTERS | 2016年 / 20卷 / 10期

关键词：

OFDMA; joint subcarrier and power allocation; linear sum assignment problem; generalized assignment problem; MULTIUSER OFDM; ASSIGNMENT;

D O I：

10.1109/LCOMM.2016.2586038

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

The joint assignment of subcarriers and limited transmission power is addressed as a combinatorial optimization problem in orthogonal frequency division multiple access networks. To ensure fairness among users while jointly minimizing the total transmit power, the minimization of the number of outage subcarriers is considered as the objective function. The proposed scheme enables distinct rate requirement for each user. Optimal and reduced complexity algorithms, based on the application of Hungarian method to randomly weighted complete bipartite graphs, that reduce the outage probability according to the benchmark works while providing considerable power savings are proposed.

引用

页码：2007 / 2010

页数：4

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