Space-time processing for MIMO-OFDM using DFT-based complementary sequences

Chad C. Lau; Robert Calderbank; Michael D. Zoltowski

doi:10.1117/12.851020

28 April 2010 Space-time processing for MIMO-OFDM using DFT-based complementary sequences

Chad C. Lau, Robert Calderbank, Michael D. Zoltowski

Proceedings Volume 7706, Wireless Sensing, Localization, and Processing V; 770608 (2010) https://doi.org/10.1117/12.851020
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

In this paper, a new space-time signaling scheme is proposed for Orthogonal Frequency Division Multiplexing (OFDM) using complementary sequences derived from the rows of the DFT matrix. The autocorrelative properties of the complementary sequences allows multiple complex data signals at the transmitter with an arbitrary number of antennas to be perfectly separated and reconstructed at the receiver without prior channel knowledge while achieving full-rate. This new method is proposed and derived for multiple MIMO-OFDM systems with multipath fading; at the receiver, symbol estimation is effected via maximum likelihood estimation (ML).

Citation Download Citation

Chad C. Lau, Robert Calderbank, and Michael D. Zoltowski "Space-time processing for MIMO-OFDM using DFT-based complementary sequences", Proc. SPIE 7706, Wireless Sensing, Localization, and Processing V, 770608 (28 April 2010); https://doi.org/10.1117/12.851020

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