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 Detalle_Publicacion

A MIMO-OFDM testbed, channel measurements, and system considerations for outdoor-indoor WiMAX

Abstract: The design, implementation, and test of a real-time flexible 2×2 (Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing) MIMO-OFDM IEEE 802.16 prototype are presented. For the design, a channel measurement campaign on the 3.5GHz band has been carried out, focusing on outdoor-indoor scenarios. The analysis of measured channels showed that higher capacity can be achieved in case of obstructed scenarios and that (Channel Distribution Information at the Transmitter) CDIT capacity is close to (Channel State Information at the Transmitter) CSIT with much lower complexity and requirements in terms of channel estimation and feedback. The baseband prototype used an (Field Programmable Gate Array) FPGA where enhanced signal processing algorithms are implemented in order to improve system performance. We have shown that for MIMO-OFDM systems, extra signal processing such as enhanced joint channel and frequency offset estimation is needed to obtain a good performance and approach in practice the theoretical capacity improvements.

 Autoría: Gil Jiménez V.P., Fernández-Getino García M.J., García Armada A., Torres R.P., García Fernández J.J., Sánchez-Fernández M.P., Domingo M., Fernández O.,

 Fuente: Eurasip Journal on Wireless Communications and Networking, 2010, 871291

Editorial: Hindawi Publishing Corporation-SpringerOpen

 Año de publicación: 2010

Nº de páginas: 13

Tipo de publicación: Artículo de Revista

 DOI: 10.1155/2010/871291

ISSN: 1687-1472,1687-1499

 Proyecto español: TEC2005-07477-C02-01

Url de la publicación: https://doi.org/10.1155/2010/871291

Autoría

GIL JIMÉNEZ, VÍCTOR PEDRO

FERNÁNDEZ-GETINO GARCÍA, MARÍA JULIA

ANA GARCIA ARMADA

GARCÍA FERNÁNDEZ, JUAN JOSÉ

MATILDE SANCHEZ FERNANDEZ