MAC Level Performance Evaluation of Downlink Resource Allocation Strategies for an OFDMA System Based on IEEE 802.16

Author

Einhaus, Michael ; Klein, Ole ; Walke, Bernhard ; Halfmann, Rüdiger

Author_Institution

Commun. Networks, RWTH Aachen Univ.

fYear

2007

fDate

22-25 April 2007

Firstpage

2796

Lastpage

2800

Abstract

In this paper, different downlink resource allocation strategies for an OFDMA are analyzed in detail. The performance of a centrally controlled system based on IEEE 802.16 is investigated by means of stochastic event-driven simulations. The focus is on the tradeoff between system capacity maximization due to the exploitation of multi user diversity and fairness in terms of packet delay. Since QoS (quality of service) provision is a critical design issue in the development of future broadband radio systems, the presented results can be considered as a contribution to the design process of such systems.

Keywords

OFDM modulation; WiMax; access protocols; broadband networks; diversity reception; quality of service; radio links; resource allocation; IEEE 802.16; MAC level performance evaluation; OFDMA system; QoS; broadband radio systems; downlink resource allocation strategies; multi user diversity; quality of service; stochastic event-driven simulations; Automatic repeat request; Centralized control; Data communication; Delay; Downlink; Media Access Protocol; Physical layer; Quality of service; Resource management; Scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2007. VTC2007-Spring. IEEE 65th

Conference_Location

Dublin

ISSN

1550-2252

Print_ISBN

1-4244-0266-2

Type

conf

DOI

10.1109/VETECS.2007.574

Filename

4213002