A distributed power allocation algorithm with adaptive modulation for multi-cell OFDM systems

Author

Su, Hsuan Jung ; Geraniotis, Evaggelos

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

2

fYear

1998

fDate

2-4 Sep 1998

Firstpage

474

Abstract

A heuristic distributed algorithm for allocating power among OFDM subchannels is proposed. Its performance and convergence in a multi-cell system with frequency reuse factor 4 are evaluated through simulation. With a realistic simulation which considers uniformly distributed mobiles, propagation loss and fading, it is shown that this simple distributed algorithm enhances the throughput of OFDM systems as compared to equal power allocation

Keywords

OFDM modulation; adaptive modulation; cellular radio; channel capacity; cochannel interference; distributed algorithms; fading channels; frequency allocation; radiowave propagation; OFDM subchannels; adaptive modulation; convergence; distributed power allocation algorithm; fading; frequency reuse factor; heuristic distributed algorithm; multi-cell OFDM systems; performance; propagation loss; simulation; throughput; uniformly distributed mobiles; Base stations; Distributed algorithms; Educational institutions; Fading; Interchannel interference; Mobile communication; Mobile computing; OFDM modulation; Throughput; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Spread Spectrum Techniques and Applications, 1998. Proceedings., 1998 IEEE 5th International Symposium on

Conference_Location

Sun City

Print_ISBN

0-7803-4281-X

Type

conf

DOI

10.1109/ISSSTA.1998.723829

Filename

723829