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Iterative algorithms for blind interference suppression in CDMA

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2 Author(s)
Ristaniemi, T. ; Dept. of Math. Inf. Technol., Jyvaskyla Univ., Finland ; Joutsensalo, J.

In this paper, we introduce a novel iterative algorithm for blind interference suppression for CDMA systems. The algorithm needs no knowledge of any codes and it is derived from an optimization criterion. More precisely, it can be regarded as a modification of blind linear MMSE algorithm which avoids channel and chip timing estimation. Also a simplified variant using a short training sequence is considered. Simulations show how the proposed methods have better interference suppression capabilities compared to conventional matched filter based single user detector and subspace based blind linear MMSE detector

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Signal Processing Advances in Wireless Communications, 1999. SPAWC '99. 1999 2nd IEEE Workshop on

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