WLC22-2: Delay Analysis and Comparison of OFDM-TDMA and OFDMA under IEEE 802.16 QoS Framework

Author

Chang, Yu-Jung ; Chien, Feng-Tsun ; Kuo, C. C Jay

Author_Institution

Dept. of Electr. Eng., Univ. of Southern California, Los Angeles, CA

fYear

2006

fDate

Nov. 27 2006-Dec. 1 2006

Firstpage

1

Lastpage

6

Abstract

The delay analysis and comparison of OFDM- TDMA and OFDMA using a flow control scheme under the QoS framework of IEEE 802.16 are conducted in this work. We investigate the maximum packet delay performance by deriving delay bounds for several multiaccess modes with different subcarrier/time-slot assignment and bit allocation schemes. The analytical delay bounds provide insights into the performance difference among different multiaccess schemes, and demonstrate each scheme´s capability of supporting real-time, delay-sensitive multimedia applications. The derived analytical results are verified by computer simulation.

Keywords

OFDM modulation; WiMax; channel allocation; delays; frequency division multiple access; multimedia communication; quality of service; time division multiple access; IEEE 802.16 QoS framework; OFDM-TDMA; OFDMA; analytical delay bounds; bit allocation schemes; computer simulation; delay analysis; delay-sensitive multimedia applications; flow control scheme; maximum packet delay performance; multiaccess modes; subcarrier-time-slot assignment; Bit rate; Delay; Multiaccess communication; OFDM; Performance analysis; Queueing analysis; Resource management; Streaming media; Time division multiple access; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2006. GLOBECOM '06. IEEE

Conference_Location

San Francisco, CA

ISSN

1930-529X

Print_ISBN

1-4244-0356-1

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2006.740

Filename

4151370