CUED Publications database

A MIMO-OFDM testbed for wireless local area networks

Guillén i Fàbregas, A and Guillaud, M and Slock, DTM and Caire, G and Gosse, K and Rouquette, S and Dias, AR and Bernardin, P and Miet, X and Conrat, J-M and Toutain, Y and Peden, A and Li, Z (2006) A MIMO-OFDM testbed for wireless local area networks. Eurasip Journal on Applied Signal Processing, 2006. pp. 1-20. ISSN 1110-8657

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Abstract

We describe the design steps and final implementation of a MIMO OFDM prototype platform developed to enhance the performance of wireless LAN standards such as HiperLAN/2 and 802.11, using multiple transmit and multiple receive antennas. We first describe the channel measurement campaign used to characterize the indoor operational propagation environment, and analyze the influence of the channel on code design through a ray-tracing channel simulator. We also comment on some antenna and RF issues which are of importance for the final realization of the testbed. Multiple coding, decoding, and channel estimation strategies are discussed and their respective performance-complexity trade-offs are evaluated over the realistic channel obtained from the propagation studies. Finally,we present the design methodology, including cross-validation of the Matlab, C++, and VHDL components, and the final demonstrator architecture. We highlight the increased measured performance of the MIMO testbed over the single-antenna system. £.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div F > Signal Processing and Communications
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 12:00
Last Modified: 08 Dec 2014 02:40
DOI: 10.1155/ASP/2006/18083