Adaptive spatial modulation for MIMO-OFDM

Author

Chae, Chan-Byoung ; Katz, Marcos ; Suh, Changho ; Jeong, Hongsil

Author_Institution

Telecommun. R&D Center, Samsung Electron., Suwon, South Korea

Volume

1

fYear

2004

fDate

21-25 March 2004

Firstpage

87

Abstract

In this paper we propose and analyze an adaptive spatial modulation scheme for MIMO-OFDM systems which adaptively and optimally selects one of the following transmission modes: diversity, spatial multiplexing and a hybrid combination of these two modes. Two criterias are used for mode selection, namely, the minimum Euclidean distance and a simple threshold based stochastic method exploiting channel quality estimations. We consider practically implementable antenna configuration with four transmit antennas and two or four receive antennas. Simulation results show that considerable BER performance gains can be obtained by the adaptive spatial modulation system, as compared with systems based on fixed modulation schemes.

Keywords

MIMO systems; OFDM modulation; adaptive antenna arrays; adaptive modulation; channel estimation; diversity reception; error statistics; fading channels; multipath channels; multiplexing; radio networks; receiving antennas; stochastic processes; transmitting antennas; BER performance; Euclidean distance; MIMO-OFDM systems; adaptive spatial modulation scheme; bit error rate; channel quality estimations; communication switching; diversity reception; mixed mode approach; multipath fading channels; receive antennas; spatial multiplexing; stochastic method; transmit antennas; Diversity methods; Diversity reception; Euclidean distance; Fading; Feedback; MIMO; OFDM modulation; Receiving antennas; Statistics; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference, 2004. WCNC. 2004 IEEE

ISSN

1525-3511

Print_ISBN

0-7803-8344-3

Type

conf

DOI

10.1109/WCNC.2004.1311523

Filename

1311523