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General techniques for analyzing DS/SSMA interference illustrated by evaluating a noncoherent system

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2 Author(s)
McDowell, A.T. ; Hughes Defense Commun., Fort Wayne, IN, USA ; Lehnert, J.S.

A conditional probability density function of the multiple-access interference (MAI) in direct-sequence spread-spectrum multiple access (DS/SSMA) systems with complex modulation (e.g., M-ary and continuous phase) is derived from a geometric viewpoint. A method to efficiently calculate the two-dimensional (2-D) convolutions of a number of circularly symmetric densities is presented. The utility of these methods is then illustrated by evaluating a noncoherent DS/SSMA system

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Communications, IEEE Transactions on  (Volume:44 ,  Issue: 12 )