Multiuser MIMO-OFDM with Adaptive Antenna and Subcarrier Allocation

Author

Hu, Yang ; Yin, Changchuan ; Yue, Guangxin

Author_Institution

Beijing Univ. of Posts & Telecommun.

Volume

6

fYear

2006

fDate

7-10 May 2006

Firstpage

2873

Lastpage

2877

Abstract

Subcarrier allocation schemes for SISO-OFDM systems in multiuser downlink scenario is well-documented. In this paper, with the goal of maximizing channel capacity, we extend it to MIMO-OFDM systems and propose a novel resource scheduling scheme with dynamic antenna and subcarrier allocation. This is done by maximizing the number of equivalent parallel subchannels in space-frequency structure and corresponding channel fading coefficients in frequency domain. The results show that our proposed algorithm outperforms multiuser MIMO-OFDM systems with static time-division multiple access (TDMA) technique which employ fixed and predetermined time-slot allocation scheme

Keywords

MIMO systems; OFDM modulation; adaptive antenna arrays; channel capacity; fading channels; scheduling; TDMA technique; adaptive antenna; channel capacity; channel fading coefficients; dynamic antenna; multiple input multiple output system; multiuser MIMO-OFDM systems; orthogonal frequency division multiplexing; resource scheduling scheme; space-frequency structure; static time-division multiple access technique; subcarrier allocation schemes; time-slot allocation scheme; Adaptive arrays; Base stations; Channel capacity; Downlink; MIMO; OFDM; Optimal scheduling; Receiving antennas; Resource management; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2006. VTC 2006-Spring. IEEE 63rd

Conference_Location

Melbourne, Vic.

ISSN

1550-2252

Print_ISBN

0-7803-9391-0

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2006.1683393

Filename

1683393