An adaptive multiple antenna transmission scheme for an OFDMA system

Author

Kim, Yun Hee ; Hwang, Kyu Jong ; Kim, Kwang Soon ; KyungHi Chang

Author_Institution

Electron. & Telecommun. Res. Inst., Daejeon, South Korea

Volume

2

fYear

2003

Firstpage

1377

Abstract

We propose an orthogonal frequency division multiplexing frequency division multiple access (OFDMA) system with an adaptive multiple antenna transmission scheme for future wireless communication systems. In the system, both a transmit diversity scheme with high order modulation and a spatial multiplexing scheme with low order modulation are employed for the given spectral efficiency, between which the proper transmission scheme is selected according to the channel state. It is observed that the proposed system with a selection algorithm based on the post processing SNR reduce the average transmit power.

Keywords

OFDM modulation; adaptive antenna arrays; diversity reception; frequency division multiple access; packet radio networks; space division multiplexing; OFDMA system; SNR; adaptive multiple antenna transmission; channel state; orthogonal frequency division multiplexing frequency division multiple access; spatial multiplexing scheme; spectral efficiency; transmit diversity; wireless communication; Adaptive arrays; Block codes; Fading; Modulation coding; OFDM; Performance analysis; Radio spectrum management; Resource management; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Communication Technology Proceedings, 2003. ICCT 2003. International Conference on

Print_ISBN

7-5635-0686-1

Type

conf

DOI

10.1109/ICCT.2003.1209784

Filename

1209784