Bit and power allocation for MIMO-OFDM systems with spatial mode selection over frequency-space-time-selective channels

Author

Jung, Koochul ; Park, Chang Soon ; Lee, Kwang Bok

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Seoul Nat. Univ., South Korea

Volume

5

fYear

2004

fDate

26-29 Sept. 2004

Firstpage

3404

Abstract

The multiple input multiple output orthogonal frequency division multiplexing (MIMO-OFDM) system is known to reduce the negative impact of the time dispersive characteristic of channels and show high spectral efficiency. Various spatial modes, such as multiplexing and diversity, can be used to improve the spectral efficiency further. In this paper, we propose the bit and power allocation scheme for MIMO-OFDM systems with spatial mode selection over frequency-space-time-selective channels. Simulation results show that the proposed scheme provides improved throughput performance.

Keywords

MIMO systems; OFDM modulation; channel allocation; dispersion (wave); diversity reception; frequency allocation; MIMO-OFDM systems; bit allocation; diversity; frequency-space-time-selective channels; multiple input multiple output orthogonal frequency division multiplexing system; multiplexing; power allocation; simulation; spatial modes; spatial selection; spectral efficiency; throughput performance; time dispersive channel characteristics; Computer science; Dispersion; Frequency diversity; MIMO; OFDM modulation; Power system modeling; Radio spectrum management; Receiving antennas; Throughput; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2004. VTC2004-Fall. 2004 IEEE 60th

ISSN

1090-3038

Print_ISBN

0-7803-8521-7

Type

conf

DOI

10.1109/VETECF.2004.1404695

Filename

1404695