Title :
Variable-rate OFDM systems with selective antenna diversity and adaptive modulation
Author :
Torabi, Mohammad ; Soleymani, M. Rem
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada
Abstract :
In this article, a new scheme consisting of a combination of adaptive modulation, orthogonal frequency division multiplexing (OFDM), high order space-frequency block coding (SFBC), and antenna selection is presented. The proposed scheme, exploits the benefits of space-frequency block codes, OFDM and adaptive modulation to provide high quality of transmission for wireless communications over frequency selective fading channels. We examine the spectral efficiency and coding gain advantages of the proposed system. It is shown that antenna selection with adaptive modulation can greatly improve the performance of the conventional SFBC-OFDM systems.
Keywords :
OFDM modulation; adaptive modulation; block codes; diversity reception; fading channels; adaptive modulation; antenna selection; coding gain; frequency selective fading channels; high order space-frequency block coding; orthogonal frequency division multiplexing; selective antenna diversity; spectral efficiency; variable-rate OFDM systems; wireless communication; Adaptive arrays; Bit error rate; Block codes; Fading; Modulation coding; Multipath channels; OFDM modulation; Receiving antennas; System performance; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1207605
