Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels

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ACTA ELECTRONICA SINICA ›› 2001, Vol. 29 ›› Issue (S1) : 1799-1802.

WANG Wei, LI Shao-hong, MAO Shi-yi, YANG Chen-yang

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Abstract

In DS-CDMA channels with multipath and multiple access interference,this paper estimates blindly the user-channel with extended space-time channel model to process the blind MMSE detection.Moreover,using the concept in radar,this paper proposes a kind of reduced-rank processing which outperforms the subspace method by maximizing the output signal-to-interference and noiseratio(SINR).Simulation results demonstrate the good performances of those methods.

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space-time adaptive processing / multiuser detection / CDMA

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WANG Wei, LI Shao-hong, MAO Shi-yi, YANG Chen-yang. Blind Space-Time Reduced-Rank Multiuser Detection in Multipath CDMA Channels[J]. Acta Electronica Sinica, 2001, 29(S1): 1799-1802.

References

[1] X Wang,H V Poor.Blind joint equalization and multiuser detection for DS-CDMA in unknown carrelated noise [J].IEEE Trans.on Circuitsand Systems,July 1999,46(7):886-895.

[2] Y Song,S Roy.Blind adaptive reduced-rank detection for DS-CDMA signals in multipath channels [J].IEEE Journal on Selected Areas in Communications.Nov.1999,17(11):1960-1970.

[3] X Wang,H V Poor.Blind multiuser detection:a subspace approach[J].IEEE Trans on Information Theory,March 1998,44(2):677-690.

[4] C E Davila.Efficient,high performance,subspace tracking for time-domain data [J].IEEE Trans on Signal Processing,Dec.2000,48(12):3307-3315.

[5] J S Goldstein,I S Reed.Subspace selection for partially adaptive sensor array processing [J].IEEE Trans.on A.E.S.,April 1997,33(2):539-544.