AffiliationUniversity of Kansas
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Collection InformationProceedings from the International Telemetering Conference are made available by the International Foundation for Telemetering and the University of Arizona Libraries. Visit http://www.telemetry.org/index.php/contact-us if you have questions about items in this collection.
AbstractWe investigate the performance of reduced complexity receivers for aeronautical telemetry shaped-offset quadrature phase shift-keying (SOQPSK-TG) in multiple-input multiple-output (MIMO) channels. We use spatial multiplexing (SM) to achieve the highest throughput possible. Two types of channel equalization methods are considered to separate the substreams sent by independent antennas. The first method employs linear equalizers, including minimum mean-squared error (MMSE) and zero-forcing (ZF), to nullify the intersymbol interference (ISI) introduced by the MIMO channel in a single step. The second method, vertical Bell Labs layered space time (V-BLAST) architecture, removes the ISI iteratively by the use of decision feedback (DE). The channel equalizer is followed by a suboptimal SOQPSK-TG detector. The performance of various equalizer/detector pairs are presented. The results show that computationally efficient MIMO SOQPSK-TG architectures achieve excellent bit error rate (BER) performance while transmitting at high data rates.
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