Title :
Performance of orthogonal transmit waveforms for CDMA uplink systems in MIMO Rayleigh channels
Author :
Tsai, Jiann-An ; Woerner, Brian D.
Abstract :
In this paper, we extend our previous work (2001) to design orthogonal transmit waveforms (OTW) for CDMA systems in MIMO (multiple transmit/receive antennas) mobile radio channels. We evaluate the performance of orthogonal transmit waveforms for uplink communications systems through the use of bit-error-rate (BER) simulation. We investigate the MIMO mobile radio uplink channels for both time-varying flat and frequency selective Rayleigh fading channels. The proposed OTW systems exploit both the spatial and temporal diversity of MIMO mobile radio channels. The effects of angle spread, Doppler frequency, and delay spread of MIMO mobile channels on the BER performance of the OTW system are considered.
Keywords :
MIMO systems; Rayleigh channels; code division multiple access; diversity reception; error statistics; mobile radio; receiving antennas; time-varying channels; transmitting antennas; BER simulation; CDMA uplink systems; Doppler frequency; MIMO Rayleigh channels; angle spread; bit error rate; delay spread; diversity; flat fading; frequency selective Rayleigh fading; mobile radio; multiple transmit/receive antennas; orthogonal transmit waveforms; performance; time-varying channels; Broadband antennas; Delay; Land mobile radio; MIMO; Mobile antennas; Multiaccess communication; Quadrature phase shift keying; Rayleigh channels; Receiving antennas; Transmitting antennas;
Conference_Titel :
Wireless Communications and Networking Conference, 2002. WCNC2002. 2002 IEEE
Print_ISBN :
0-7803-7376-6
DOI :
10.1109/WCNC.2002.993491
