An Efficient Resource Allocation Algorithm for OFDMA-based Multihop Wireless Transmission

Author

Chen, Liang ; Krongold, Brian

Author_Institution

Univ. of Melbourne, Melbourne

fYear

2007

fDate

3-7 Sept. 2007

Firstpage

1

Lastpage

5

Abstract

This paper investigates the power minimization problem in OFDMA based wireless multihop systems with the knowledge of channel state information (CSI). The joint allocation problem is divided into two stages: bandwidth allocation and subchannel assignment. Efficient optimal and suboptimal algorithms for both stages are jointed together to provide beneficial and stable improvements by exploiting a form of multiuser diversity via intelligent subchannel partitioning on the frequency-selective fading channel.

Keywords

OFDM modulation; bandwidth allocation; multi-access systems; resource allocation; wireless channels; OFDMA-based multihop wireless transmission; bandwidth allocation; channel state information; frequency-selective fading channel; intelligent subchannel partitioning; multiuser diversity; orthogonal frequency division multiple access; power minimization problem; resource allocation algorithm; subchannel assignment; Bandwidth; Data communication; Decoding; Fading; Land mobile radio; Partitioning algorithms; Relays; Resource management; Signal processing; Spread spectrum communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on

Conference_Location

Athens

Print_ISBN

978-1-4244-1144-3

Electronic_ISBN

978-1-4244-1144-3

Type

conf

DOI

10.1109/PIMRC.2007.4394566

Filename

4394566