An assembly of simultaneously transmitted electrically generated signals, which contains a subset of binary spreading-code sequences that are members of a large set of binary spreading-code sequences available to a particular node of a multi-node communication network. All sequences in the set of spreading-code sequences available to the particular node of the network can be generated by the same configurations of two linear feedback binary shift registers, where feedback taps of the two linear-feedback binary shift registers correspond to primitive polynomials of the same degree over GF(2), the field of two elements.