DocumentCode
2125646
Title
Transmit diversity schemes for an overloaded space-time spreading system over a flat Rayleigh fading channel
Author
Chen, Dianjun ; Hashimoto, Takeshi
Author_Institution
Dept. of Electron. Eng., Electro-Commun. Univ., Tokyo, Japan
Volume
4
fYear
2004
fDate
5-8 Sept. 2004
Firstpage
2664
Abstract
We consider two schemes for an overloaded space-time spreading system. One is to realize tradeoffs between the number of users and the diversity gain with constant signal amplitudes. Another is to achieve great diversity order by varying user signal amplitudes. For each scheme we give some simulation results.
Keywords
Rayleigh channels; antenna arrays; code division multiple access; diversity reception; radio links; transmitting antennas; diversity gain; flat Rayleigh fading channel; overloaded space-time spreading system; signal amplitude; transmit diversity scheme; Costs; Diversity methods; Downlink; Fading; MIMO; Mobile antennas; Multiaccess communication; Rayleigh channels; Receiving antennas; Transmitting antennas;
fLanguage
English
Publisher
ieee
Conference_Titel
Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on
Print_ISBN
0-7803-8523-3
Type
conf
DOI
10.1109/PIMRC.2004.1368803
Filename
1368803
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