Title :
Analytical Results of V-BLAST MIMO Systems with Two Transmit Antennas over Correlated Rayleigh Channels
Author :
Xu, Rongtao ; Zhong, Zhangdui ; Chen, Jiann-Mou
Author_Institution :
State Key Lab. of Rail Traffic Control & Safety, Beijing Jiaotong Univ., Beijing, China
Abstract :
In this paper, the performance of vertical Bell labs space-time (V-BLAST) algorithms for the MIMO systems with two transmit antennas is analyzed over correlated-Rayleigh channel. We derive the analytical bit error rates (BERs) of the first and second detection steps for both optimal and fixed detection ordering schemes. We also investigate the signal-to-noise ratio (SNR) degradation of the detection steps for correlated-Rayleigh channels over an independent and identically distributed (i.i.d.) Rayleigh channel. Afterwards, the effect of optimal ordering on the SNR improvement over fixed detection ordering has been discussed. Results have shown that the correlation reduces the SNR improvement of optimal ordering in the first step, whereas the correlation has no effect on the performance of the second step.
Keywords :
MIMO communication; Rayleigh channels; error statistics; signal detection; transmitting antennas; Bell labs space-time algorithm; V-BLAST MIMO system; analytical bit error rates; correlated Rayleigh channel; correlated-Rayleigh channel; fixed detection ordering scheme; identically distributed Rayleigh channel; signal-to-noise ratio degradation; two transmit antennas; Algorithm design and analysis; Bit error rate; Degradation; Detectors; Error analysis; Fading; MIMO; Performance analysis; Rayleigh channels; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5304620
