A QoS-Guaranteed Adaptive Resource Allocation Algorithm with Low Complexity in OFDMA System

Author

Youjun, Gao ; HaiBo, Xu ; Hui, Tian ; Ping, Zhang

Author_Institution

Coll. of Telecom Eng., Beijing Univ. of Posts & Telecommun.

fYear

2006

fDate

22-24 Sept. 2006

Firstpage

1

Lastpage

4

Abstract

Orthogonal frequency division multiple access (OFDMA) technique is considered in this paper. We do research on the subcarrier, bit and power allocation algorithm in it and propose the novel dynamic subcarrier and bit allocation algorithm - QoS-guaranteed adaptive resource allocation algorithm with low complexity for real-time services when the instantaneous channel gain is considered. Then we can derive the better system performance when the adaptive algorithm is used in the resource allocation scheme, and it can derive the lower power and complexity in contrast to other existing algorithms

Keywords

OFDM modulation; frequency division multiple access; matrix algebra; quality of service; OFDMA system; QoS-guaranteed adaptive resource allocation algorithm; bit allocation algorithm; instantaneous channel gain; orthogonal frequency division multiple access; power allocation algorithm; quality of service; real-time services; subcarrier allocation algorithm; Bandwidth; Bit error rate; Bit rate; Educational institutions; Frequency conversion; OFDM; Real time systems; Resource management; Telecommunications; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2006. WiCOM 2006.International Conference on

Conference_Location

Wuhan

Print_ISBN

1-4244-0517-3

Type

conf

DOI

10.1109/WiCOM.2006.62

Filename

4149239