DocumentCode
1717572
Title
Multi-user detection in OFDM systems using CDMA and multiple antennas
Author
Degen, Christoph ; Brühl, Lars
Author_Institution
Inst. of High Frequency Technol., Aachen Univ., Germany
fYear
2003
Firstpage
116
Lastpage
120
Abstract
In this paper multiuser detection in OFDM systems is examined. The separation of concurrently transmitted signals is based on space division and code division multiple access (SD/CDMA). The achievable bit error ratio and the peak to average power ratio (PAPR) are evaluated for different spreading strategies. A novel time domain spreading technique for OFDM systems is proposed for which the PAPR is independent of the processing gain. The examined OFDM techniques are compared with single-carrier transmission using equalization in the frequency domain (SC/FDE), which shows strong similarities to OFDM systems.
Keywords
OFDM modulation; code division multiple access; error statistics; mobile radio; multiuser detection; space division multiple access; spread spectrum communication; time-domain analysis; OFDM systems; PAPR; SD/CDMA; bit error ratio; code division multiple access; multiple antennas; multiuser detection; peak to average power ratio; space division multiple access; time domain spreading technique;
fLanguage
English
Publisher
iet
Conference_Titel
Personal Mobile Communications Conference, 2003. 5th European (Conf. Publ. No. 492)
ISSN
0537-9989
Print_ISBN
0-85296-753-5
Type
conf
DOI
10.1049/cp:20030230
Filename
1350168
Link To Document