Lower bounds of dimension of linear codes for CDMA

A linear code of the length 2ⁿ is called a saving property bent code (SPB-code) for a bent function f if for any element a of the code, f (x ф a) is a bent function. For every bent function from Maiorana - McFarland class with 2n variables, there exists SPB-code of the dimension 2ⁿ⁺¹ - 1. For every bent function with a linearity index k, there exists SPB-code of the dimension 2^fc+1 - 1.

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