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Finite-step algorithms for constructing optimal CDMA signature sequences

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3 Author(s)
Tropp, J.A. ; Dept. of Math., Michigan Univ., Ann Arbor, MI, USA ; Dhillon, I.S. ; Heath, R.W.

A description of optimal sequences for direct-spread code-division multiple access (DS-CDMA) is a byproduct of recent characterizations of the sum capacity. This paper restates the sequence design problem as an inverse singular value problem and shows that the problem can be solved with finite-step algorithms from matrix theory. It proposes a new one-sided algorithm that is numerically stable and faster than previous methods.

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Information Theory, IEEE Transactions on  (Volume:50 ,  Issue: 11 )