A MIMO-OFDM Testbed for Wireless Local Area Networks

Autor: Conrat Jean-Marc, Guillaud Maxime, Slock Dirk TM, Peden Alain, Li Zaiqing, Gosse Karine, Rouquette Stéphanie, Dias Alexandre Ribeiro, Bernardin Philippe, Miet Xavier, Caire Giuseppe, Toutain Yann, Fàbregas Albert Guilléni
Jazyk: angličtina
Rok vydání: 2006
Předmět:
Zdroj: EURASIP Journal on Advances in Signal Processing, Vol 2006, Iss 1, p 018083 (2006)
Druh dokumentu: article
ISSN: 1687-6172
1687-6180
DOI: 10.1155/ASP/2006/18083
Popis: 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.
Databáze: Directory of Open Access Journals
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