Title :
On the Performance of V-BLAST Detectors in MIMO MT-CDMA Uplink over Multipath Fading Channel
Author :
Yang, Wei ; Wei, Yang
Author_Institution :
Univ. of Sci. & Technol. of China, Hefei
Abstract :
In this paper, an asynchronous multiple-input multiple-output multitone code division multiple access (MIMO MT-CDMA) scheme for the uplink of the mobile communication in a frequency selective fading channel is analyzed. Maximum ratio combining (MRC) and linear zero-forcing (ZF) V-BLAST detectors are applied at the receiver. The average bit error rate (BER) expression for uniform multipath power profile is derived when the number of receive antennas is greater than that of transmit antennas. Numerical results verify the BER expression and show that the number of transmit and receive antennas has a significant effect on the BER performance. Space diversity and path diversity have different abilities to improve the performance. The average BER performance of the proposed system is also compared with that of a conventional MT-CDMA system.
Keywords :
MIMO communication; code division multiple access; error statistics; fading channels; mobile communication; BER; MIMO MT-CDMA uplink; V-BLAST detectors; asynchronous multiple-input multiple-output; bit error rate; maximum ratio combining; mobile communication; multipath fading channel; multitone code division multiple access; path diversity; receive antennas; space diversity; transmit antennas; zero forcing; Bit error rate; Detectors; Diversity reception; Fading; Frequency conversion; MIMO; Mobile communication; Multiaccess communication; Receiving antennas; Transmitting antennas;
Conference_Titel :
Networking, 2007. ICN '07. Sixth International Conference on
Conference_Location :
Martinique
Print_ISBN :
0-7695-2805-8
Electronic_ISBN :
0-7695-2805-8
DOI :
10.1109/ICN.2007.62
