Title :
New spread spectrum techniques for multiple antenna transmit diversity
Author :
Rajan, Dinesh ; Erkip, Elza ; Aazhang, Behnaam
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
We propose a new scheme for multiple antenna transmission in the context of spread spectrum signaling. The new scheme consists of using shifted Gold sequences to modulate independent information on the multiple antennas. We show that this new scheme greatly improves the throughput over currently known multiple antenna methods. We also find the optimal power allocation strategy among multiple transmit antennas for a fixed feedback rate.
Keywords :
cellular radio; code division multiple access; codes; diversity reception; multiuser channels; radio links; radio transmitters; sequences; spread spectrum communication; transmitting antennas; DS-CDMA; Gold codes; cellular systems; downlink communications; fixed feedback rate; independent information modulation; multiple antenna transmission; multiple antenna transmit diversity; multiple transmit antennas; optimal power allocation; shifted Gold sequences; spread spectrum signaling; spread spectrum techniques; throughput; wideband code division multiple access; Antenna feeds; Downlink; Fading; Feedback; Gold; Modulation coding; Receiving antennas; Spread spectrum communication; Throughput; Transmitting antennas;
Conference_Titel :
Global Telecommunications Conference, 1999. GLOBECOM '99
Print_ISBN :
0-7803-5796-5
DOI :
10.1109/GLOCOM.1999.831717
