Title :
Performance analysis of MMSE multiuser detection
Author :
Wang, Yi ; Du, Zhimin ; Gao, Lu ; Weiling Wu
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
Performance analysis of minimum mean-squared error (MMSE) multiuser detection over a synchronous multipath channel is considered in this paper. Assuming the channel parameters are known, analysis shows that both the signal-to-noise ratio at the output of the MMSE detector and near-far resistance are related to the cross-correlation matrix of the combined spreading waveforms. Computation results demonstrate that the MMSE detector can achieve good performance under severe conditions, including large number of users and large channel length
Keywords :
code division multiple access; least mean squares methods; multipath channels; multiuser channels; signal detection; spread spectrum communication; DS-CDMA; MMSE multiuser detection; channel length; channel parameters; combined spreading waveforms; cross-correlation matrix; minimum mean-squared error; near-far resistance; performance analysis; signal-to-noise ratio; synchronous multipath channel; AWGN; Demodulation; Detectors; Multiaccess communication; Multipath channels; Multiple access interference; Multiuser detection; Performance analysis; Signal analysis; Signal to noise ratio;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.890913
