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Design of user codes in QS-CDMA systems for MUI elimination in unknown multipath

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2 Author(s)
Scaglione, A. ; infocom Dept., Rome Univ., Italy ; Giannakis, G.B.

Low-complexity quasi synchronous CDMA systems are derived for eliminating multi-user interference (MUI) completely in the presence of unknown and even rapidly varying multipath. They rely on judiciously designed precomputable user codes and offer a generalization of orthogonal frequency division multiplexing, especially valuable when carrier frequency errors and Doppler effects are present.

Published in:

Communications Letters, IEEE  (Volume:3 ,  Issue: 2 )