Title :
New Space Diversity Schemes with Feedback for Three Transmit Antennas
Author :
Sahin, Selami ; Celebi, M. Emre ; Aygölü, Ümit
Author_Institution :
TUBITAK-Ulusal Elektron. ve Kriptoloji Arastirma Enstitusu, Gebze
Abstract :
In this paper, new space diversity techniques are proposed for wireless communication systems with three transmit antennas. The first one is a code selection scheme in which all antennas are used, the other one is a hybrid scheme which consists of a combination of code and antenna selection schemes. In both schemes the precoding vector which maximizes diversity for current channel condition is selected with limited numbers of feedback bits. The scheme and the values of components of precoding vectors specify the numbers of precoding vectors and feedback bits. It is shown by computer simulations that the error performance is improved by increasing the number of feedback bits.
Keywords :
channel coding; diversity reception; precoding; transmitting antennas; wireless channels; antenna selection scheme; channel condition; code selection scheme; space diversity technique; three transmit antenna; vector precoding; wireless communication system; Antenna feeds; Computational modeling; Computer errors; Feedback; Quadrature phase shift keying; Transmitting antennas; Wireless communication;
Conference_Titel :
Signal Processing and Communications Applications, 2006 IEEE 14th
Conference_Location :
Antalya
Print_ISBN :
1-4244-0238-7
DOI :
10.1109/SIU.2006.1659845
