An improved fair subcarrier allocation algorithm for multiuser OFDM system

Author

Xiao-juan Zhou ; Jun-sheng Zhang

Author_Institution

Eng. Coll., CAPF, Xi´an, China

Volume

5

fYear

2011

fDate

12-14 Aug. 2011

Firstpage

2548

Lastpage

2552

Abstract

An improved subcarrier allocation algorithm for multiuser OFDM system was performed, In order to improve the proportional fairness of channel resource allocation. A parameter a was introduced into the new algorithm. The subcarrier allocation algorithm was divided into two steps: aN subcarrier allocation algorithm and residual subcarrier allocation. By simulation experiment with the proposed algorithm, D_n algorithm and Shen algorithm, the proposed algorithm has a good performance in the spectral efficiency, normalized capacity, sum capacity and fairness.

Keywords

OFDM modulation; channel allocation; resource allocation; Shen algorithm; channel resource allocation; improved fair subcarrier allocation algorithm; multiuser OFDM system; normalized capacity; proportional fairness; residual subcarrier allocation; spectral efficiency; sum capacity; Algorithm design and analysis; Bandwidth; Electronic mail; OFDM; Resource management; Signal to noise ratio; Wireless communication; Computer simulations; multiuser OFDM; multiuser diversity; proportional fairness; resource allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic and Mechanical Engineering and Information Technology (EMEIT), 2011 International Conference on

Conference_Location

Harbin, Heilongjiang, China

Print_ISBN

978-1-61284-087-1

Type

conf

DOI

10.1109/EMEIT.2011.6023619

Filename

6023619