An Adaptive Resource Allocation Scheme in OFDMA based Multiservice WiMAX Systems

Author

Xinning Zhu ; Huo, Jiachuan ; Song Zhao ; Zeng, Zhimin ; Ding, Wei

Author_Institution

Sch. of Continuing Educ., Beijing Univ. of Posts & Telecommun., Beijing

Volume

1

fYear

2008

fDate

17-20 Feb. 2008

Firstpage

593

Lastpage

597

Abstract

In this paper, we propose a time-frequency resource allocation scheme for OFDMA based system in WiMAX access networks. We utilize a user-based scheduling scheme to reduce complexity. The user with the highest priory is scheduled first on its best subchannel. The resource allocation is performed to guarantee the QoS requirements of various traffic first and to improve throughput next. The simulation results show that the proposed allocation scheme can provide diverse QoS guarantees and use resources efficiently.

Keywords

OFDM modulation; WiMax; frequency division multiple access; quality of service; radio access networks; resource allocation; scheduling; telecommunication traffic; time-frequency analysis; wireless channels; OFDMA; QoS traffic; adaptive resource allocation scheme; frequency division multiple access; multiservice WiMAX access network; orthogonal frequency division multiplexing; quality of service; time-frequency analysis; user-based scheduling scheme; wireless channel; Chromium; Cognitive radio; Computer vision; Delay effects; Detectors; Frequency; Radio spectrum management; Resource management; Signal detection; WiMAX; IEEE 802.16; OFDMA; QoS; WiMAX; resource allocation; scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on

Conference_Location

Gangwon-Do

ISSN

1738-9445

Print_ISBN

978-89-5519-136-3

Type

conf

DOI

10.1109/ICACT.2008.4493833

Filename

4493833