Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems

Authors:
Ilkka Harjula;Antonio Ramirez;Francisca Martinez;David Zorrilla;Marcos Katz;Valentin Polo
Affiliations:
VTT, Oulu, Finland;DAS Photonics S.L., Valencia, Spain;DAS Photonics S.L., Valencia, Spain;DAS Photonics S.L., Valencia, Spain;VTT, Oulu, Finland;Nanophotonics Technology Center, Valencia, Spain
Venue:
EHAC'08 Proceedings of the 7th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications
Year:
2008

Citing 3
Cited 2

Digital Beamforming in Wireless Communications

Digital Beamforming in Wireless Communications
MIMO-OFDM wireless systems: basics, perspectives, and challenges

IEEE Wireless Communications
Space-time codes for high data rate wireless communication: performance criterion and code construction

IEEE Transactions on Information Theory

Cellular / wireless LAN repeater system by wireless optical link with optical power supply

WSEAS TRANSACTIONS on COMMUNICATIONS
Analysis of and compensation for non-ideal ROF links in DAS

IEEE Wireless Communications

Quantified Score

Hi-index	0.00

Visualization

Abstract

In this paper, several multipleinput multipleoutput (MIMO) techniques are studied for OFDM/A systems which have antennas connected to the base station with radio over fiber (RoF). The delay effects caused by the optical fibers on the fixed-beam transmit beamforming are studied via Monte Carlo simulations. Also the effect of combining RoF with other MIMO techniques in OFDM/A systems, like spatial multiplexing, spacetime coding, and receiver beamforming, is discussed. The results indicate that for phase shift differences lower than those corresponding to a 1 m unevenness in the fiber's length, RoF does not significantly decrease the performance of an OFDM/A system with fixed transmit beamforming, and with other MIMO techniques, the effect of employing RoF is negligible.