Title :
Further results on high-rate MIMO-OFDM underwater acoustic communications
Author :
Li, Baosheng ; Huang, Jie ; Zhou, Shengli ; Ball, Keenan ; Stojanovic, Milica ; Freitag, Lee ; Willett, Peter
Author_Institution :
Dept. of Elec. & Comput. Engr., Univ. of Connecticut, Storrs, CT
Abstract :
MIMO-OFDM is one viable solution for high data rate transmissions over underwater acoustic channels. Our previous work has reported experimental results for MIMO-OFDM with two transmitters and QPSK modulation. In this paper, we deal with MIMO-OFDM with more transmitters and higher order modulation. With data collected from the RACE experiment at Narragansett Bay, Rhode Island, March 2008, we report MIMO-OFDM performance results of QPSK/8-QAM/16-QAM/64-QAM modulations with two transmitters, QPSK/8-QAM/16-QAM modulations with three transmitters, and QPSK/8-QAM modulations with four transmitters. With large constellations and MIMO spatial multiplexing, very high data rates can be achieved, e.g., a spectral efficiency of 3.5 bits/sec/Hz is approached in three different configurations.
Keywords :
MIMO communication; OFDM modulation; quadrature amplitude modulation; quadrature phase shift keying; space division multiplexing; telecommunication channels; underwater acoustic communication; QAM modulation; QPSK modulation; acoustic channel; high-data rate transmission; high-rate MIMO-OFDM performance; spatial multiplexing; spectral efficiency; underwater acoustic communication; Algorithm design and analysis; Bandwidth; Detectors; MIMO; Marine technology; OFDM modulation; Quadrature phase shift keying; Transmitters; Underwater acoustics; Underwater communication;
Conference_Titel :
OCEANS 2008
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4244-2619-5
Electronic_ISBN :
978-1-4244-2620-1
DOI :
10.1109/OCEANS.2008.5152056
