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

Ilkka Harjula, Antonio Ramirez, Francesca Martinez, David Zorrilla, Marcos Katz, Valentin Polo

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

In this paper, several multiple-input multiple-output (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, space-time coding, and receiver beamforming, h 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. (14 refs.)
Original languageEnglish
Title of host publicationElectronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008
Place of PublicationAthens, Greece
PublisherWSEAS Press
Pages244-248
ISBN (Print)978-9-6067-6640-4
Publication statusPublished - 2008
MoE publication typeA4 Article in a conference publication
EventElectronics & communications. 7th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications, EHAC 2008 - Cambridge, United Kingdom
Duration: 20 Feb 200822 Feb 2008

Conference

ConferenceElectronics & communications. 7th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications, EHAC 2008
Abbreviated titleEHAC 2008
CountryUnited Kingdom
CityCambridge
Period20/02/0822/02/08

Fingerprint

Radio-over-fiber
Orthogonal frequency division multiplexing
Beamforming
Multiplexing
Phase shift
Base stations
Optical fibers
Antennas
Fibers

Keywords

  • Radio over fibre
  • radio over fiber
  • OFDMA
  • beamforming
  • MIMO
  • WiMAX

Cite this

Harjula, I., Ramirez, A., Martinez, F., Zorrilla, D., Katz, M., & Polo, V. (2008). Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems. In Electronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008 (pp. 244-248). Athens, Greece: WSEAS Press.
Harjula, Ilkka ; Ramirez, Antonio ; Martinez, Francesca ; Zorrilla, David ; Katz, Marcos ; Polo, Valentin. / Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems. Electronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008. Athens, Greece : WSEAS Press, 2008. pp. 244-248
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title = "Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems",
abstract = "In this paper, several multiple-input multiple-output (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, space-time coding, and receiver beamforming, h 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. (14 refs.)",
keywords = "Radio over fibre, radio over fiber, OFDMA, beamforming, MIMO, WiMAX",
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Harjula, I, Ramirez, A, Martinez, F, Zorrilla, D, Katz, M & Polo, V 2008, Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems. in Electronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008. WSEAS Press, Athens, Greece, pp. 244-248, Electronics & communications. 7th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications, EHAC 2008, Cambridge, United Kingdom, 20/02/08.

Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems. / Harjula, Ilkka; Ramirez, Antonio; Martinez, Francesca; Zorrilla, David; Katz, Marcos; Polo, Valentin.

Electronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008. Athens, Greece : WSEAS Press, 2008. p. 244-248.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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T1 - Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems

AU - Harjula, Ilkka

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AU - Polo, Valentin

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N2 - In this paper, several multiple-input multiple-output (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, space-time coding, and receiver beamforming, h 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. (14 refs.)

AB - In this paper, several multiple-input multiple-output (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, space-time coding, and receiver beamforming, h 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. (14 refs.)

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KW - MIMO

KW - WiMAX

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BT - Electronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008

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Harjula I, Ramirez A, Martinez F, Zorrilla D, Katz M, Polo V. Practical issues in the combining of MIMO techniques and RoF in OFDM/A systems. In Electronic Communications. Proceedings of the 7th WSEAS International Conference on Electronics Hardware, Wireless and Optical Communications, EHAC 2008. Athens, Greece: WSEAS Press. 2008. p. 244-248