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Efficient algorithms for the assignment of OVSF codes in wideband CDMA

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3 Author(s)
Dell'Amico, M. ; DISMI, Univ. of Modena & Reggio Emilia, Italy ; Merani, M.L. ; Maffioli, F.

This paper proposes some novel techniques to accommodate users with different transmission rate requirements in a CDMA system which employs orthogonal variable spreading factor codes. Several static and dynamic code assignment strategies are put forth and their behavior investigated, in terms of call blocking probability and number of required call reassignments. Their efficiency in dealing with various traffic loads is demonstrated, quantitatively showing the superior performance of our dynamic scheme with respect to a so-called "optimal" code assignment strategy recently presented in the literature.

Published in:

Communications, 2002. ICC 2002. IEEE International Conference on  (Volume:5 )

Date of Conference:

2002