Title :
Evaluation of Space-Time-Frequency (STF)-Coded MIMO-OFDM Systems in Realistic Channel Models
Author :
Kehrle Miranda, Ricardo ; Lustosa da Costa, Joao Paulo C. ; Marinho, M.A.M. ; Pignaton de Freitas, Edison ; Freitas De Ramos, Rafael ; Kefei Liu ; Hing Cheung ; Baltar, Leonardo ; de Sousa, Rafael T.
Author_Institution :
Dept. of Electr. Eng., Univ. of Brasilia, Brasilia, Brazil
Abstract :
By taking into account several dimension of the transmitted signal, such as space, frequency, period and time, MIMO-OFDM systems allow an increased spectral efficiency and an improved identifiability in comparison to matrix solutions. In this paper, we evaluate MIMO-OFDM systems for geometric scenarios where the narrow band approximation is violated. To this end a new data model is proposed to better represent the behavior of the system in the presence of wide band signals. Moreover, we also relax the assumption that the amount of transmitted antennas is equal to the number of transmitted symbols.
Keywords :
MIMO communication; OFDM modulation; error statistics; geometry; network coding; radio spectrum management; telecommunication channels; telecommunication signalling; transmitting antennas; STF-coded MIMO-OFDM systems; channel models; data model; geometric scenarios; matrix solutions; narrow band approximation; space-time-frequency-coded MIMO-OFDM systems; spectral efficiency; transmitted antennas; transmitted signal; transmitted symbols; wide band signals; Bit error rate; Data models; Receiving antennas; Signal to noise ratio; Tensile stress; Transmitting antennas; Vectors;
Conference_Titel :
Advanced Information Networking and Applications Workshops (WAINA), 2014 28th International Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4799-2652-7
DOI :
10.1109/WAINA.2014.57
