Title :
Analytical evaluation of transmit selection diversity for wireless channels with multiple receive antennas
Author :
Abrardo, Andrea ; Maraffon, Claudio
Author_Institution :
Dept. of Information Eng., Siena Univ., Italy
Abstract :
We investigate the performance of a switched diversity scheme, where the transmitter selects one of the nt available transmit antennas. The selected antenna is chosen in the basis of information feedback from the receiver. In the proposed scheme, vehicle movements cause a mismatch between the state of the channel perceived by the receiver and the actual propagation conditions. Hence, an analytical approach for the evaluation of the impact of mobile speed on the system performance is derived. Then, comparisons between switched diversity and space-time coding performance are given. Such results assess the validity of the considered switched diversity approach for low mobility-low complexity wireless systems.
Keywords :
diversity reception; feedback; mobile antennas; mobile communication; space-time codes; information feedback; low mobility-low complexity wireless systems; mobile speed; propagation conditions; radio receiver; space-time coding performance; switched diversity scheme; transmit antennas; transmit selection diversity; Antenna feeds; Antennas and propagation; Feedback; Frequency; MIMO; Performance analysis; Receiving antennas; System performance; Transmitters; Transmitting antennas;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204020