Scheduling algorithms for quality of service aware OFDMA wireless systems

Author

Farrokhi, Farrokh R. ; Olfat, Masoud ; Alasti, Mehdi ; Liu, K. J Ray

Author_Institution

Electr. & Comput. Eng. Dept., Maryland Univ., College Park, MD, USA

Volume

4

fYear

2004

fDate

29 Nov.-3 Dec. 2004

Firstpage

2689

Abstract

In this paper, we investigate scheduling in multiuser OFDMA systems. The objective is to maximize the resource utilization in a network, while a required quality of service (QoS) per user is satisfied. A notion of revenue maximization is used to determine the optimal OFDMA subcarrier allocation to different users based on their required QoS. The optimal solution for the problem is presented and its performance and complexity are studied. An iterative low complexity algorithm is also proposed to achieve near optimal performance.

Keywords

OFDM modulation; broadband networks; communication complexity; quality of service; radio networks; scheduling; telecommunication congestion control; telecommunication network management; QoS per user; iterative low complexity algorithm; multiuser OFDMA systems; optimal OFDMA subcarrier allocation; problem complexity; quality of service aware OFDMA wireless systems; resource utilization; revenue maximization; scheduling algorithms; Educational institutions; Iterative algorithms; OFDM modulation; Processor scheduling; Quality of service; Resource management; Scheduling algorithm; Telecommunication traffic; Throughput; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE

Print_ISBN

0-7803-8794-5

Type

conf

DOI

10.1109/GLOCOM.2004.1378493

Filename

1378493