OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
Space-Time Block Coding for Wireless Communications
Space-Time Block Coding for Wireless Communications
Fundamentals of wireless communication
Fundamentals of wireless communication
Reduced-complexity transmit/receive-diversity systems
IEEE Transactions on Signal Processing
IEEE Transactions on Information Theory
Antenna selection in MIMO systems
IEEE Communications Magazine
A simple transmit diversity technique for wireless communications
IEEE Journal on Selected Areas in Communications
Multivariate modulation and coding for wireless communication
IEEE Journal on Selected Areas in Communications
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Simple but efficient antenna selection schemes are proposed for the downlink of Orthogonal Frequency Division Multiplexing (OFDM) transmission with multiple transmit antennas over frequency selective fading channels, where transmit antennas are selected at the mobile terminal and the base station is informed of the selected antennas through feedback channel. To obtain the optimal antenna selection, channel frequency responses are required and performances have to be evaluated at all the subcarriers. To reduce the computational complexity at mobile terminal, time-domain channels are utilized for antenna selection in place of channel frequency responses. Our scheme does not guarantee the optimal antenna selection but is shown by numerical simulations to yield reasonable selections. Moreover, by using a specially designed pilot OFDM preamble, an antenna selection without channel estimation is developed. Efficiencies of our suboptimal antenna selections with less computational complexities are verified by numerical simulations.