Performance Evaluation of MIMO-OFDM in Tunnels

Author

Sanchis-Borras, Concepcion ; Molina-Garcia-Pardo, Jose-Maria ; Lienard, Martine ; Degauque, Pierre

Author_Institution

Inf. Technol. & Commun. Dept., Tech. Univ. of Cartagena, Cartagena, Spain

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

301

Lastpage

304

Abstract

It has been previously shown that communications in tunnel environments can be improved by using multiple-input-multiple-output (MIMO) techniques, despite the small angular spread of the rays. However, narrowband transmission was always assumed to fulfill the flat channel hypothesis. The objective of this letter is to generalize these previous works to the case of a wideband communication, i.e., when the transmission bandwidth is much larger than the coherence bandwidth of the channel. Performances of MIMO combined with orthogonal frequency division multiplexing (MIMO-OFDM) are studied in terms of bit error rate and considering either space-time coding or spatial multiplexing. Transfer matrices of the channel measured in a straight arched tunnel are introduced in the software used for simulating the communication link.

Keywords

MIMO communication; OFDM modulation; error statistics; space-time codes; MIMO-OFDM; bit error rate; coherence bandwidth; communication link; flat channel hypothesis; multiple-input-multiple-output techniques; narrowband transmission; orthogonal frequency division multiplexing; space-time coding; spatial multiplexing; straight arched tunnel; transfer matrices; transmission bandwidth; tunnel environments; wideband communication; Antennas; Arrays; Bit error rate; Correlation; Frequency measurement; MIMO; OFDM; Multiple-input–multiple-output (MIMO); orthogonal frequency division multiplexing (OFDM); space–time coding; spatial multiplexing; tunnel;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2191130

Filename

6170538